SERVICE MANUAL MR-G57N-T-NZ - B.d.t.

HOME REFRIGERATOR 

SERVICE MANUAL 

Model MR-G57N-T-NZ 

Model name 

indication 

(Inside this door) 

NZ ••• New Zealand 

NOTE: 

• RoHS compliant products have mark on the spec name plate. 

No. OAH103 

CONTENTS 

1. FEATURES ••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••3 

2. SPECIFICATIONS ••••••••••••••••••••••••••••••••••••••••••••••••••••••••••4 

3. WIRING DIAGRAM ••••••••••••••••••••••••••••••••••••••••••••••••••••••••6 

4. OUTLINES AND DIMENSIONS •••••••••••••••••••••••••••••••••••••••••8 

5. REFRIGERANT CIRCUIT ••••••••••••••••••••••••••••••••••••••••••••••••9 

6. TROUBLESHOOTING••••••••••••••••••••••••••••••••••••••••••••••••••• 10 

6-1 FUNCTION OF OPERATION PANEL ••••••••••••••••••••••••••• 10 

6-2 FLOWCHART OF SELF-CHECK •••••••••••••••••••••••••••••••• 21 

6-3 BLOCK DIAGRAM OF PRINTED CIRCUIT BOARD •••••••• 25 

6-4 AUTO ICE MAKER ••••••••••••••••••••••••••••••••••••••••••••••••• 25 

6-5 FLOWCHART OF TROUBLE CRITERION •••••••••••••••••••• 27 

6-6 TROUBLE CRITERION OF MAIN PARTS ••••••••••••••••••••• 34 

6-7 TEST POINT DIAGRAM OF FILTER BOARD •••••••••••••••• 39 

6-8 TEST POINT DIAGRAM OF CONTROL BOARD •••••••••••• 40 

7. NAMES OF THE PARTS ••••••••••••••••••••••••••••••••••••••••••••••• 41 

8. DISASSEMBLY INSTRUCTIONS ••••••••••••••••••••••••••••••••••••• 42 

PARTS CATALOG (OAB103)

1 

FEATURES 

MR-G57N-NZ 

1. Vitamin-enhancing vegetable compartment 

This is a totally new-concept vegetable compartment, which enhances 

2 

the nutritional value of vegetables by irradiating LED light. 

2 wavelength 590nm 

Orange LED 

It encourages the 

vegetables to generate 

reducing sugar, which 

is the source of the 

1 

vegetable’s life, and 

increases vitamin C. 

1 This is a comparison value between the 25% drop on the 2002 conventional product of 

our company (MR-S46B) and the 10% increase on the 2008 new model. The sprouts 

were wrapped in plastic and put under LED. It was measured under the following 

condition: about 90 % humidity and a refrigerator temperature of about 5 ºC. 

The effect depends on the positional relation with other vegetables and LED light, and 

the amount of vegetables stored in the compartment. 

3 

Vitamin-enhancing 

vegetable compartment

2 

SPECIFICATIONS 


Accessories 

Weight 

SPECIFICATIONS 

Power supply 

V,Hz 

Total capacity 

L 

Dimensions (H x W x D) 

mm 

Cabinet 

Food liner 

Cabinet 

Insulation 

Freezer door 

Refrigerator door 

Freezer 

Cooling system 

Refrigerator 

Evaporator 

Condenser 

Defrost system 

Drain 

Temperature control system 

Refrigerator compartment room light 

Unit 

Shipping 

Capillary tube 

Desiccant (molecular sieve) 

Refrigerant filling capacity R600a 

Refrigerating oil (Model) 

kg 

kg 

mm 

g 

g 

g 

230 V, 50 Hz 

613 (gross) 447 (storage) 

1821 x 745 x 728 

Acrylic resin coated steel 

ABS resin 

Foamed polyurethane (Cyclopentane) 



Forced air convection 

Forced air convection 

Fin and tube type 

Cabinet, sides, back and front flange 

Automatic heater defrost 

Automatic drainage, Forced evaporation method 

Automatic control 

240 V,10 W (E14) 

Free pocket (L) 

Free pocket (S) 

Bottle pocket (S) 

Bottle pocket (L) 

AUTO-shelf 

Two-way flexishelf 

Small item case 

Free egg shelf 

Slide chilled case 

Slide chilled case lid 

Versa case 

Aluminum tray (Versa case) 

Water tank (With light-type bacteria removing filter) 

Freezing case (upper) 

Freezing case (lower) 

Ice server 

Soundproof mat 

Ice storage bin 

Vegetable case 

Vegetable stand 

Sliding case (Vegetable case) 

Toe grille 

98 

108 

1.8 x 0.76 x 2820, 1.6 x 0.65 x 2820 

9 

72 

187 (FREOL S10) 

4 

2pcs. 

2pcs. 

1pc. 

1pc. 

2pcs. 

1pc. 

1pc. 

1pc. 

1pc. 

1pc. 

1pc. 

1pc. 

1pc. 

1pc. 

1pc. 

1pc. 

1pc. 

1pc. 

1pc. 

1pc. 

1pc. 

1pc.

ELECTRICAL PARTS SPECIFICATIONS 


Defrosting 

control 

Fan motor 

Temperature control 

Model 

Dial position 

HI 

MID 

LOW 

REFRIGERATOR 

CHILLED 

LOW (Soft freezing) 

MID (Soft freezing) 

HI (Soft freezing) 

FREEZER 

ICE MAKING 

ICE MAKING STOP 

CRYSTAL ICE MAKING 

Model 

Power supply 

Compressor 

Rated input 

Starting current 

W 

A 

Running current A 

Winding resistance (A.T.20 ) 

Model 

Motor protector 

Ambient temperature 

Time 

Sec. 

Current 

A 

Three-way valve 

Model 

Type 

Defrosting Model 

timer Specification 

Defrost finish 

Freezer Thermal fuse 

compartment Defrost heater 

Deodorizing function of defrost heater 

Model 

Type 

Refrigerator Input 

W 

Revolution 

Number of poles 

Model 

rpm 

Machine Input 

W 

Chamber Revolution 

Number of poles 

Water pipe heater 

rpm 

Heater 

(Rating) 

Rotational heater board 

Vegetable compartment heater 1 

Vegetable compartment heater 2 

Ice making tray heater 

Ice maker temperature 

Freezer Refrigerator 

NTC thermistor 

Versa Ice making Vegetable 

Compressor Motor damper 

Heater 

ON 

-23.8 

-21.1 

-18.4 

– 

– 

– 

– 

– 

– 

– 

– 

– 

OFF 

-25.4 

-22.7 

-20.0 

– 

– 

– 

– 

– 

– 

– 

– 

– 

OPEN 

1.9 

5.1 

8.4 

– 

1.3 

– 

– 

– 

– 

– 

– 

– 

5 

EFI100E 13DAH 

230 V, 50Hz 

45/159 (1620/4800rpm) 

2.0 (Current limiter) 

0.63/2.19 (1620/4800rpm) 

9.27 

MM3-71CCV 

25 

16 or less 

17.0 

NSCE001DC1 

4-phase stepping motor drive voltage DC12V 

SHUT 

0.7 

3.8 

7.0 

– 

0.1 

– 

– 

– 

– 

– 

– 

– 

OPEN 

– 

– 

– 

4.7 

1.5 

-1.6 

-4.3 

-6.2 

-14.5 

– 

– 

– 

Control board 

Microcomputer 

Thermistor 14 1.5 

70 ± 2 

325 (240V,177W) 

Not equipped 

UDQM002B3 

DC brushless motor 

2.4 (12V DC) 

1520 (12V DC) 

10P 

4715JL04WS16G51 

1.4 (12V DC) 

1450 (12V DC) 

4P 

240V-8.7W 

240V-8.7W 

240V-6.5W 

240V-13.2W 

240V-11.9W 

-11.6 

SHUT 

– 

– 

– 

3.4 

0.2 

-2.8 

-5.6 

-7.4 

-19 

– 

– 

– 

OPEN 

– 

– 

– 

– 

– 

– 

– 

– 

– 

-17.9 

-17.9 

-17.9 

SHUT 

– 

– 

– 

– 

– 

– 

– 

– 

– 

-21.9 

-21.9 

-21.9 

ON 

0.4 

1.9 

3.5 

– 

– 

– 

– 

– 

– 

– 

– 

– 

OFF 

-0.9 

0.7 

2.3 

– 

– 

– 

– 

– 

– 

– 

– 

–

3 


WIRING DIAGRAM 

I.THERMISTOR (Ice making compartment thermistor) 

V.THERMISTOR (Vegetable compartment thermistor) 

VERSA.THERMISTOR (Versa compartment thermistor) 

DEF.THERMISTOR (Defrost thermistor) 

ICE-TRAY THERMISTOR (Ice making tray thermistor) 

F.THERMISTOR (Freezer compartment thermistor) 

R.THERMISTOR (Refrigerator compartment thermistor) 

( SKELETON WIRING DIAGRAM ) 

6 

RESISTOR 

ASSY


Freezer 

Compartment Door 

Freezer 

Compartment 

Thermal fuse 

F. Thermistor 

Defrost heater 

Freezer room 

Door switch 

Vegetable 

Compartment Door 

Vegetable 

Compartment 

V. heater 1 

Compressor 

Valve motor 

Fan motor 

(Freezer) 

Vegetable LED 

Motor 

protector 

Ice tray 

heater 

V. Thermistor 

Ice/ Versa Compartment Door 

Motor 

damper 

I.THERMISTOR (Ice making compartment thermistor) 

V.THERMISTOR (Vegetable compartment thermistor) 

VERSA.THERMISTOR (Versa compartment thermistor) 

DEF.THERMISTOR (Defrost thermistor) 

ICE-TRAY THERMISTOR (Ice making tray thermistor) 

F.THERMISTOR (Freezer compartment thermistor) 

R.THERMISTOR (Refrigerator compartment thermistor) 

Fan motor 

(Compressor) 

Ice tray 

thermistor 

I. Thermistor 

Ice 

gear box 

S. thermistor 

DEF. Thermistor 

Versa 

Compartment 


Water pump 

motor 

( ACTUAL WIRING DIAGRAM ) 

Refrigerator/ 

Ice room Door 

switch 

Ice 

Compartment 

Motor 

damper 

( When the doors are closed. ) 

7 

Refrigerant Compartment Door 

R. Thermistor 

Room light 

under side 

Refrigerant 

Compartment 

Room light 

upside 

Electric 

box 

N/F board 

TEMP. 

CONTROL BOARD 

Divider Heater (R) 

RESISTOR 

ASSY

4 


86 

203 

196 

OUTLINES AND DIMENSIONS 

312.5 

310 

312.5 

318 

249 

400 

244 

655 

641 

655 

655 

607 

601 

601 

599 

376 

351 

415 

374 

367 

77 

337 

440 

396 

1821(Display) 

8 

8 

361 

361 

283.5 

283.5 

DOOR DIMENSION 

L(R) R(R) I S V F 

Hight 822 822 214 214 361 361 

Width 283.5 349.5 283.5 454.5 744 744 

104 

745(Display) 

740(Cabinet) 

454.5 

638(Pitch between the rear wheels) 

691(Pitch between the adjust bolts) 

726(Pitch between the front wheels) 

6 

6 

454.5 

362 214 822 

362 

12 

7 

7 

7 

760 

53 

41 

331 175 

39 

325 

100 

1821 

75 

728(Display) 

596 

655 

R(L) : Refrigerator compartment (Left) 

R(R) : Refrigerator compartment (Right) 

I : Ice making compartment 

S : Select compartment [Versa compartment] 

V : Vegetable compartment 

F : Freezer compartment 

8 

10 

309 

728 

142 

181 101 

290 

96 

2500 

633 10 

255 

195 1522 

REQUIRED SPACE FOR INSTALLATION 

37 

20 745 20 

950 

211 

165.5 

125 

125.5 

173 

~ 

~ 

~ 

~ 

206.5 

83.5 

84.5 

214 

333.5 

Unit : mm 

1121

5 


REFRIGERANT CIRCUIT 

Drain pan 

Compressor 

9 

Dryer 

#150 

Charge pipe 

(Low pressure 

side) 6.35 

Condenser 

Charge pipe 

(High pressure side) 

4.0 

Muffler 

Evaporator 

Cabinet pipe 

Three-way 

valve 

Suction pipe 


1.8× 0.76×2820(mm) 


1.6× 0.65×2820(mm)

6 

TROUBLESHOOTING 

6-1 FUNCTION OF OPERATION PANEL 


(1) Function of normal operation 

ROOM button 

Pressing this button selects the 

compartment to be displayed. 

Press to select the 

compartment before adjusting 

the temperature or cooling fast. 

SELECTION / QUICK button 

Pressing this button sets each compartment’s 

temperature. 

In order to cool fast, 

Press for 3 seconds. 

When the versa compartment is set at soft freezing 

mode, fast cooling cannot be selected. 

QUICK mode stops automatically 

• QUICK mode automatically stops in 2 hours. 

1 

When stopping QUICK mode before it automatically ends 

• Press . 

USEFUL FUNCTIONS 

Child Lock 

Press and simultaneously for 3 seconds. 

Stop ice making 

2 Press several times until is displayed. 

Operating mode and Temperature range 

Compartment Mode Temp. range 

Refrigerator 

compartment 

Versa 

compartment 

Ice making 

compartment 

Vegetable compartment 

Freezer compartment 

Middle 

Chilled 

Refrigerator 

Chilled 

Soft freezing (Middle) 

Freezer 

Normally 

Ice making stop 

Clear 

Middle 

Middle 

ECO MODE button 

Each compartment can be operated 

with energy saved. 

Approx. 0 to 6 °C 

Approx. -2 to 2 °C 


Approx. -2 to 2 °C 

Approx. -9 to -5 °C 







The temp. range is based on the data measured at the center of each compartment 

with the door closed and with no food inside under the condition of ambient temperature 30 °C. 

10 

ICE SELECT button 

Pressing this button selects the setting 

of the ice making compartment. 

To reset the unit to the initial setting, press for 3 seconds. 

The refrigerator compartment, vegetable compartment, and the 

freezer compartment will be set to "Middle", and fast cooling 

operation for all compartments will be canceled. 

·The display extinguishes in 30 seconds 

after the last button is pressed. 

(No failure in refrigerator) 

·Pushing any button turns on the display 

again.

(2) Demonstration mode for shop display 

Setting 

Within 1 minute after power supply turns on, press the , , and simultaneously for 5 seconds 

with the door of the ice making compartment opened. 

When the setting is complete, a “beep” sound is heard and “Auto Demo Mode” is displayed. 

Demonstration mode is not available when the temperature of freezer compartment is –7 °C or lower. 

Panel operation mode during demonstration mode 

The panel operation mode changes to “manual” if any of the switches is pressed. It changes to "auto" if none of the switches 

is pressed for 45 seconds since the last time any of the switches was pressed. 

Manual mode: Panel indication changes according to switch operation. 

Auto mode: Panel indication is automatically changed. 

Release 

Simultaneously press , , and switch for about 5 seconds with the door of ice making compartment 

left open. 

When the function is released, a “beep” sound is heard. 

Note: Follow the procedure above to release demonstration mode as it cannot be released by simply turning 

on/off the power supply. 

(3) Fine adjustment of temperature 

Fine adjustment of temperature is available for refrigerator compartment, freezer compartment and versa 

compartment. 

As for versa compartment, however, it is only available when the compartment is set to or . 

Setting 

Simultaneously press , ,for about 3 seconds until a “beep” sound is heard. 

Room display blinks every 10 seconds in fine adjustment mode. 

Fine adjustments of temperature 

Follow the same operation procedure for temperature adjustment. 

Fine adjustment of temperature 

Normal mode Fine adjustment mode 

L L 

L M 

L H 

L M L M 

L M 

M M 

M H 

M H M H 

L H 

M H 

H H 

Release 

Follow the same procedure as setting and the finely-adjusted temperatures are reset for refrigerator compartment, freezer 

compartment and versa compartment at once. 

Temperature is adjusted by approximately 0.3 ~ 0.6 °C. 

(4) Ice making test / Self-check 

This function is not available during the following modes: Child lock, Demonstration, Cooking timer, Changing the 

rotational speed of compressor, and Error code display. 

Setting 

Press for about 5 seconds. 

Operation and its display 

While automatic ice making is testing, the indication of ice making compartment setting blinks on display. 

When something is faulty, the error code is indicated. 

Release 

The test automatically finishes in 10 minutes and the error code changes to temperature display. 

11 

Note: -25 °C freezing. 

Select the maximum setting of the 

temperature adjustment function for the 

freezer compartment. 

There is no particular display when the 

setting is selected.

(5) Service Check Function 

1) Outline 

•The chart below shows the outline of service check function. 

•“Service check entry” needs to be set in order to perform each check mode. After setting “service check entry,” start the 

setting operation of the check mode to be displayed. 

• blinks while performing service check function. 

•The display of indicates which mode is in operation. 

•When one of the check modes is in operation, other modes cannot be set. The mode in operation needs to be canceled 

before setting another mode. 

Once each check mode starts, it continues operating even if the door gets closed. 

(Open the door when releasing each mode.) 

Refer to the next sections about the operation procedure and display of each check mode. 

•In order to release “service check function entry,” follow the same procedure as setting operation during “service check 

function entry” or each check mode. 

Service check function entry 

Mode 

1) Compressor’s rotational speed change mode 

…The rotational speed of the compressor can be 

changed; The fan motor in machine chamber 

can be switched on and off. 

2) Damper Operation mode 

…Each damper can be opened and closed; Refrigerator 

fan can be switched on/off. 

3) Thermistor temperature check mode 

…The detected temperature of each thermistor can 

be checked. 

4) Error history display mode 

…The error occurred in the past can be checked. 

(1) History display mode 

…All the error occurred in the past can be 

checked in numeric order. 

(2) Order of occurrence mode 

…The newest 5 errors (at the maximum) are 

displayed form the newest to the older. 

5) Set temperature adjustment mode 

…Set temperature in each compartment can be 

adjusted. 

Setting / releasing method Display 

Door Button operation Blinking 

Open the 

ice making compartment’s 

door 

Leave the 

ice making 

compartment’s 

door open 

Leave the 

ice making 


door open 

Leave the 

ice making 


door open 

Leave the 

ice making 


door open 

Leave the 

ice making 


door open 

12 

Simultaneously press 

and for 3 seconds 

Setting method 

Display 

Door Button operation Lighting Blinking 

- 

- 

Press 

for 3 seconds 


and 

for 3 seconds 

Press 

for 3 seconds 


and 

for 3 seconds 

Press 

Press 

FZR 

“History display mode” and “Order of occurrence mode” are 

switched over each time is pressed. 

(1) 

VEG 

(2) 


and 

for 3 seconds 

(1) 

(2) 

(3) 

(4) 

(4) 

(4) 

(5)

2) Compressor’s rotational speed change mode 

Setting 

With the ice making compartment’s door opened, simultaneously press and for 3 seconds until a “beep” 

sound is heard. starts to blink. 

With the door opened, press for 3 seconds to start compressor’s rotational speed change mode. 

Once this mode starts, it continues operating even if the door gets opened. 

Compressor’s rotational speed change mode is not available during demonstration mode, thermistor temperature mode, 

temperature adjustment mode, error history mode, or when child lock is effective. 

Display during compressor’s rotational speed change mode 

During compressor’s rotational speed change mode, blinks and lights up. 

Display of rotational speed 

• Compressor’s rotational speed is divided into ones’ place and tens’ place when it is displayed. 

• One of the values (8/4/2/1) is assigned to each indicator of both tens’ place and one’ place on the display panel. The sum of 

the corresponding values of the lighting indicators is the compressor’s rotational speed. 

Compressor’ s 

rotational speed 

Tens’ place 

… 

Temperature 

Adjustment Display 

Lighting 

Corresponding 

values 

REF CHIL 8 4 

SOFT FZR 2 1 

e.g.) Compressor’s rotational speed 56rps, Fan in machine chamber OFF 

Tens’ place "5" 

(=4+1) 

13 

Display during 


rotational speed change mode 

Fan in machine 

chamber 

ON/OFF 

Ice Making Mode 

Display 


rotational speed 

Ones’ place 

… 

Blinking 

Corresponding 

values 

REG QCK 8 4 

CRL STOP 2 1 

Fan in machine 

chamber OFF 

Ones’ place "6" 

(=4+2) 

Changing the rotational speed 

After setting this mode, compressor’s rotational speed changes every time button is pressed. 

Rotational speed (rps) is divided into ones’ place and tens’ place when it is displayed. 

(Basically the compressor starts operation at level 10, however, it may be different depending on models, or as a result of 

specification change. 

 

Normal 

Level 0 Level 1 Level 2 Level 3 Level 4 Level 5 

Low speed 

Rotational speed can be changed only when the compressor is in operation. While the compressor stops, rotational speed is 

not displayed, and button operation is not effective. When the compressor stops, unplug the power code, and wait for 

a few minutes, then plug it again. 

Operation sound may get increase in the process of changing rotational speed, but that is not dysfunction. Check the sound 

level when rotational speed is stabilized. 

Switching ON/OFF the machine chamber fan motor 

In this mode, fan motor in machine chamber can be switched on and off at each press of . 

Release 

The ON/OFF state is displayed with 

on the display panel. 

Machine chamber fan motor Display of ECO 

ON 

Lighting 

OFF 

Not lighting 

Level 6 Level 7 Level 8 Level 9 Level 10 

High speed 

With the ice making compartment’s door opened, press and simultaneously for 3 seconds until a “beep” 

sound is heard. The screen returns to the normal temperature display. 

The function is automatically released in one hour. 

Although unplugging and plugging the power code can release this function, it is recommended to follow the procedure 

above for protection of the compressor.

3) Damper Operation Mode 

Setting 

With the ice compartment door opened, press 

heard. blinks. 

and simultaneously for 3 seconds until a “beep” sound is 

With the door opened, press and simultaneously for 3 seconds until a “beep” sound is heard. 

Damper operation mode starts. Once this mode starts, it continues operating even if the door gets closed. 

Damper operation mode is not available during demonstration mode, thermistor temperature mode, compressor’s rotational 

speed change mode, temperature adjustment mode, error history mode, or when child lock is effective. 

Display during damper operation mode 

During damper operation mode, blinks and lights up. 

Control state display of each damper 

a)Damper 

serial number 

Light 

b)State of damper 

upper: the damper 

lower: the next damper 

(Operating: Blinks) 

During 

damper 

operation 

c)Refrigerator 

fan ON/OFF 

14 

Blinks 

d)Display during damper 

operation “Blinks” 

a) Damper serial number 

The room display on the display panel corresponds to the values representing damper types. The room display indicators 

and their corresponding values (8/4/2/1) are shown the tables below. 

Each serial number is assigned to each compartment (thermistor), which is used in thermistor temperature mode and 

set temperature adjustment mode besides damper operation mode. The sum of the corresponding values of the lighting 

indicators is the damper’s serial number. 

Room Display Corresponding values 

REF VR 8 4 

VEG FZR 2 1 

Serial number Assigned compartment Damper operation mode 

1 Refrigerator compartment 

2 Slide chilled compartment 

3 Ice making compartment 

4 Versa compartment 

5 Vegetable compartment 

6 Freezer compartment 

7 Defrosting 

8 Ice tray 

9 Outdoor air 

10 Deodorization 

/ : SW operation is effective / ineffective 

b) State of damper 

REF and CHIL displayed on the upper part indicate the present state of the damper, and SOFT and FZR displayed on the 

lower part indicate the state of the next damper operation. 

REF and SOFT displayed on the left side indicate that the damper is open, and CHIL and FZR displayed on the right side 

indicate that the damper is close. 

Present 

Next 

REF CHIL 

SOFT FZR 

Open Close 

c) ON/OFF state of refrigerator fan motor 

ECO indicates the ON/OFF state of refrigerator fan motor.

Opening and closing dampers 

(1) Press to select the damper to be set. Each press of the button makes a “beep” sound and changes the kind of 

dampers. The serial number described in a) indicates the selected damper. 

The selected damper is displayed using the serial number (1: refrigerator ~ 10: deodorization) in numeric order repeatedly. 

Refrigerator damper slide chilled compartment damper ice making compartment damper outdoor air deodorization damper 

Slide chilled compartment, vegetable compartment, defrosting, ice tray, outdoor air, and deodorization can be selected; 

however, it is ineffective in damper operation mode. 

Status display of damper 

1. REF and SOFT displayed on the left side indicate that the damper is open, and CHIL and FZR displayed on the right side 

indicate that the damper is close. 

2. REF and CHIL displayed on the upper part indicate the present state of the damper, and SOFT and FZR displayed on the 

lower part indicate the state of the next damper operation. 

3. The selected status (open or close) of both present and next damper states lights up when the selected damper is operational. 

However, FZR keeps lighting up as the next state when the selected damper is not operational. 

Present 

Next 

REF CHIL 

SOFT FZR 

Open 

Close 

4. When the selected damper is in operation, the indicator for the present state blinks. 

5. When any of the dampers, including the one that is not selected, is in operation, "d) display during damper operation" blinks. 

(2) Press , and then select "SOFT" to open the damper or "FZR" to close the damper. 

(3) Press for 3 seconds to operate the damper. (A “beep” sound is heard when the setting has been conveyed.) 

Setting of the operating damper cannot be changed. 

Damper operation stops automatically. (Blinking changes to lighting.) 

e.g.) When changing the damper of ice making compartment from “CLOSE” state to “OPEN” state, select the indicators as 

shown below and press for 3 seconds. 

Switching ON/OFF the refrigerator fan motor in the unit 

In this mode, each press of switches on and off the refrigerator fan motor. 

The ON/OFF state of the refrigerator fan motor is represented with . 

"ECO" display Fan motor in the unit 

Lighting ON 

Not lighting OFF 

Release 

a)Serial b)State of damper 

number Present “CHIL” : Close 

“3” : Ice making Next “SOFT” : Open 

compartment 

With the ice making compartment’s door opened, press and simultaneously for 3 seconds until a “beep” sound is 

heard. The screen returns to the normal temperature display. 



above for protection of the compressor. 

15 

c)Refrigerator fan 

Lighting : ON 

d)

4) Thermistor temperature check mode 

Setting 

With the ice compartment door opened, press and simultaneously for 3 seconds until a “beep” sound is 


With the door opened, press for 3 seconds. 

Thermistor temperature check mode starts. Once this mode starts, it continues operating even if the door gets closed. 

Thermistor temperature check mode is not available during demonstration mode, Compressor's rotational speed change 

mode, set temperature adjustment mode, error history display mode, or when child lock is effective. 

Display during thermistor temperature check mode 

During thermistor temperature check mode, blinks and lights up. 

Displaying the thermistor temperature 

The kind and temperature of thermistor is displayed on the operation panel. 

Outside temperature detected by thermistor may be a little different from the actual one due to the influence of the 

temperature in the refrigerator. 

a)Thermistor 

Serial number 

b)Thermistor 

temperature 

tens’ place 

a) Thermistor serial number 

The room display on the display panel corresponds to the values representing thermistor types. The room display indicators 

and their corresponding values (8/4/2/1) are shown the tables below. 

Each serial number is assigned to each compartment (thermistor), which is used in damper operation mode and 

set temperature adjustment mode besides thermistor temperature mode. The sum of the corresponding values of the 

lighting indicators is the thermistor’s serial number. 

Room Display Corresponding values 

REF VR 8 4 

VEG FZR 2 1 

Light 

c)Thermistor 

temperature 

± signs 

Display during 

thermistor temperature 

check mode 

Serial number Assigned compartment Thermistor temperature check mode 







7 Defrosting 

8 Ice tray 

9 Outdoor air 



b) Thermistor temperature tens’ place 

Tens’ place of thermistor temperature is indicated on the display part which is usually used for temperature adjustment of 

slide chilled compartment. 

Display of REF / CHIL / SOFT / FZR corresponds to the values, 8/4/2/1. The sum of the corresponding values of the blinking 

indicators is the tens’ place of thermistor temperature. 

Temperature Adjustment Display Corresponding values 

REF CHIL 8 4 

No indicator lights up when it is “0”. 

SOFT FZR 2 1 

c) Thermistor temperature signs 

Plus and minus signs of thermistor temperature are indicated on the display which is usually used for "ECO" mode. 

ECO Thermistor temperature signs 

Lighting - 

Not lighting + 

16 

d)Thermistor 

temperature 

ones’ place 

Blink

d) Thermistor temperature ones’ place 

Ones’ place of thermistor temperature is indicated on the display part which is usually used for ice making setting. 

Display of REG / QCK / CRL / STOP corresponds to the values, 8/4/2/1. The sum of the corresponding values of lighting 

indicators is the ones’ place of thermistor temperature. 

Ice making setting display Corresponding values 

REG QCK 8 4 No indicator lights up when it is “0”. 

CRL STOP 2 1 

e.g.) When freezer compartment thermistor is –25 ºC. 

a)Serial 

number 

“6” : Freezer 

Changing the thermistor on display 

b)Tens’ place 

“2” 

c)Sign 

“-” 

d)Ones’ place 

“5” (=4+1) 

While thermistor temperature is on display, press . 

Each press of the button makes a “beep” sound and changes the kind of thermistor. 

Each thermistor is displayed using the serial numbers described in a) in numeric order repeatedly (1: refrigerator 

compartment ~ 10: deodorization). 

Refrigerator compartment slide chilled compartment ice making compartment versa compartment vegetable 

compartment freezer compartment defrosting ice tray outdoor air deodorization damper 

When this mode is set, the display always starts from the refrigerator thermistor. 

Slide chilled compartment thermistor can be selected; however, it is ineffective because slide chilled compartment thermistor 

is not installed. 

Deodorization can be selected; however, it is ineffective in thermistor temperature check mode. 

Release 






5) Error history display mode 

The errors occurred in the past can be observed as an error history. Use this mode when the actual problem of 

the refrigerator is different from the error that was displayed at the service-call received. 

Error history display mode offers two ways of display. One of the two is “history display mode,” which shows all 

errors occurred in the past in numeric order of the error code; the other is “order of occurrence mode,” which 

shows the newest 5 errors (at the maximum) from the newest to the older. 

Error history display mode starts with “history display mode.” 

Setting 

With the ice compartment’s door opened, press and simultaneously for 3 seconds until a “beep” sound is 



History error mode starts. Once this mode starts, it continues operating even if a door gets opened. 

Display during error history display mode 

During error history display mode, blinks and lights up. 

Display of error history information. 

Light 

a)Mode display b)Error code 

“History display Tens’ place 

mode” or 

“Order of occurrence 

mode” 

Display during error 

history display mode 

c)Error code 

Ones’ place 

a) Mode display 

Display the selected mode between “history display mode” and “order of occurrence mode.” 

b) Error code tens’ place 

It displays the tens’ place of error code. 

It applies the same representative method as the errorl display of self-check. 

c) Error code ones’ place 

It displays the tens’ place of error code. 

It applies the same representative method as the error display of self-check. 

17 

Blink

Switching over the mode 

Press to select one of the error history display modes. Each press of the button makes a “beep” sound and 

switches over between “history display mode” and “order of occurrence mode.” 

Compartment Error history display mode 

FZR History display mode Display all errors occurred in the past in numeric order of the error code 

VEG Order of occurrence mode Display the newest 5 errors (at the maximum) from the newest to the older. 

Display method 

Display method of the error code is the same as self check error display. (Refer to 6-2(3)); however, all indicators used for 

the display of error code light up simultaneously for 3 seconds before the first error code is displayed (“pre- display”). 

e.g.) When errors occurred in the following order: 

fan motor error (E31) communication error of operation panel (E01) refrigerator thermistor error (E13) 

•Display during history display mode 

Errors are displayed in numeric order. 

Tens’ place 

Ones’ place 

Error code Pre-display 

3sec. 

0.5 

sec. 

•Display during order of occurrence mode 

Errors are displayed from the newest to the older. 

Tens’ place 

Ones’ place 

E01 E13 E31 

0.5 

sec. 

Repetition 

When no error occurred in the past, error code is not displayed. 

Check points and resetting the error history 

Check and take appropriate measures according to the procedures as stated in 6-2(1). 

Conduct self-check to confirm there is no dysfunction. (Make sure all connectors are connected properly and there are 

no loose connection.) 

Refer to “ Setting” above and activate the error history mode again. With the ice making compartment’s door 

opened, press for 3 seconds to reset error history. (Resetting the error history is completed.) If it is completed 

correctly, no error code would be displayed. 

Release 






18 

0.5 

sec. 

5sec. 5sec. 5sec. 

Error code Pre-display E13 E01 E31 

3sec. 

0.5 

sec. 

0.5 

sec. 

Repetition 

0.5 

sec. 

0.5 

sec. 

0.5 

sec. 

Pre-display 

3sec. 

Pre-display 

5sec. 5sec. 5sec. 3sec.

6) Set temperature adjustment mode 

Switch operation on the operation panel changes the set temperature in each compartment. 

Setting 

With the ice compartment door opened, press 

blinks. 

and simultaneously for 3 seconds until a “beep” sound is heard. 


Set temperature adjustment mode starts. Once this mode starts, it continues operating even if the door gets closed. 

Display during set temperature adjustment mode 

During set temperature adjustment mode, blinks and lights up. 

Control state display of each compartment 

a)Compartment 

serial number 

Light 

b)Set temperature adjustment level 

a) Compartment serial number 

Serial number of the selected compartment for set temperature adjustment is displayed on the part that 

are usually used for room display. 

Each serial number is assigned to each compartment that will be used in set temperature adjustment mode besides damper 

operation mode and thermistor temperature check mode. 

The sum of the corresponding values of the lighting indicators is the compartment serial number. 

Room display Corresponding values 

REF VR 8 4 

VEG FZR 2 1 

Serial number Assigned compartment Set temperature adjustment mode 







7 Defrosting 

8 Ice tray 

9 Outdoor air 



b) Set temperature adjustment level 

Adjustment level of the set temperature is displayed on the display part that is usually used for temperature adjustment. 

Adjusting the set temperature 

19 

Display during set 

temperature 

adjustment mode 

(1) Select the compartment with button. 

(2) Each press of the button makes a “beep” sound and changes the compartment to adjust the set temperature. 

Each compartment will be displayed using the serial numbers (1: refrigerator compartment~ 6: Freezer 

compartment) in numeric order repeatedly. 

Refrigerator compartment slide chilled compartment versa compartment ice making compartment 

vegetable compartment freezer compartment 

Set temperature adjustment operation of slide chilled compartment is possible; however, it is ineffective because slide chilled 

compartment thermistor is not installed. 

Blink

(3) Select the adjustment level of set temperature with . 

Each press of the button makes a “beep” sound and changes the adjustment level of set temperature. 

There are 5 adjustment levels of set temperature ( 2 & 0), and the selected level is displayed. 

Adjustment level 

+2 

+1 

Temperature 

adjustment display 

REF 

CHIL 

Change of the set 

temperature 

About +2 ºC 

About +1 ºC 

±0 No change 

-1 About -1 ºC 

SOFT 

-2 About -2 ºC 

FZR 

Release 






Door Buzzer System : 

Door buzzer has been installed so that one will not forget to close the door. 

•The buzzer rings in the following conditions: 

1. When door is left open. 

2. When refrigerator fan motor or machine chamber fan motor is abnormal. 

3. When there is possibility that the door of freezer compartment is not closed securely. 

1. When door is left open 

Every 1 minute, for 4 minutes 

After 5 minutes 

Buzzer 

"Beep beep" 4 times 

“"Beep beep" continuously 

2. Refrigerator fan motor or machine chamber fan motor is abnormal "Beep beep" 2 times 

3. When there is possibility that the door of freezer compartment is not closed securely "Beep beep" 3 times 

1. The buzzer rings to inform the open door when the door of ice making compartment, refrigerator compartment, or freezer 

compartment is left open for more than one minute. 

•The buzzer rings every minute. After 5 minutes, the buzzer rings continuously. 

•The buzzer will stop ringing as soon as the door is closed. 

•When the buzzer does not stop even if all the doors are closed, door switch may be abnormal. 

The buzzer can be stopped by the following operations. 

Perform the ice making test operation. 

(Note: If the test is conducted with water in the ice tray, water may fall into the ice storage bin because the tray is rolled 

over in the ice making operation.) 

2. Buzzer sounds when a trouble is found in refrigerator fan motor or in machine chamber fan motor. The buzzer sounds 

every time the door is closed until normal operation is obtained. 

(Check the error code by following the steps in Specification of display in self-check result on page 21.) 

3. Buzzer sounds when there is possibility that the door of freezer compartment is not closed securely. The assumption is 

made in either of the following conditions. 

When the door of freezer compartment is closed, and the temperature inside did not lower after a predetermined time. 

The temperature of freezer compartment is abnormally high, and the temperature of evaporator is abnormally low continuously 

for a long time. 

Room light : 

• Room light inside the refrigerator compartment lights when the door of refrigerator compartment or ice making compartment 

is open. 

• When room light is lighted continuously for more than 60 minutes, it is turned off to prevent heating. 

• The protection is released when doors of refrigerator compartment and ice making compartment are closed. Then, room 

light will be lighted the next time at normal timing. 

20

6-2 FLOWCHART OF SELF-CHECK 


(1) Troubleshooting with self-check 

This refrigerator has self-check feature to clarify and indicate where & what the trouble is. 

You can perform operation checks and identify malfunction of electric or electronic parts. 

Error history is recorded and can be displayed by the refrigerator. 

Yes 

Self-check 

(current displayed error) 

Display error 

history. 

Self-check Error history mode (Refer to 6-1.(5)5)) 

Operate the ice-making test. 

(Current displayed error: Refer to 

in the table below.) 

The display of ice making compartment 

setting will blink during the test. 

Is error displayed? 

Yes 

Locate the trouble according to error 

display. (See page 22-24) 

Unplug the power cord from outlet. 

Repair /replace defective part(s) 

according to error display. 

Self-check 

Plug the power cord into outlet. 

(Current displayed error: 

Refer to in the table below.) 


No 

Was more than one error 

displayed during repair? 

Yes 

Was the error which was informed from 

user by telephone turned on displayed. 

And was treatment performed? 

Yes 

Self-check is finished. 

During the ice-making 

test mode, watch the 

operation ice-maker 

gear box and water 

pump in refrigerator. 

No 

No 

No 

*Wait 10 minutes 

before plugging 

the cord once 

it's unplugged. 

(if the cord is 

plugged in within 

10 minutes, error 

may be displayed.) 

Perform error 

history mode. 

Perform error 

history mode. 

Self-check and error display method and operation 

Item 

Ice making test operation. 

All items except (*6) listed 

up on the table at page 

24 will be checked. 

Power input. 

All items except (*6) listed 

up on the table at page 

24 will be checked. 

Error history 

21 

Problem may recover automatically. 

Perform the following if error is not displayed 

before treatment or the error which was informed 

from user by telephone is not displayed. 

Yes 

Set the error display mode. 


Yes 

Perform self-check 

procedures through . 

Reset the error history. 

(Refer to 6-1.(5)5)) 


No 

No 

Release error displayed 

mode, and the self-check 

is finished. 

Release error display 

mode and perform the 

self-check again. 

(go to ) 

Note1: Self-check cannot detect abnormalities in the following parts. 

See page 27-39 for troubleshooting. 

Door switch 

Motor damper 

Heater (Water pipe / Vegetable compartment heater, etc.) 

Water pump motor 

Note2: If any abnormality is found when plugging the power cord, 

compressor and fan motor are suspended for 10 minutes. 

Note3: The alarm beeps when some abnormalities (motor-locked) have 

occurred at the refrigerator fan motor or machine chamber fan 

motor restarts its normal operation. 

Note4: If any abnormality occurs in compressor's inverter circuit, 

the compressor and the refrigerator fan motor stop for 10 minutes 

(not only when plugging the power cord). 

Operation method Display or self-check operation Display time Others 

Press the switch. 

for 5 seconds. 

(“beep” is heard) 

Plug the power 

cord into outlet. 

Refer to 6-1(5)5) 

Error history 

display mode. 

1.Conduct the automatic ice making test. 

(The display of ice making compartment 

setting is blinked) 

2.When trouble is found, all error codes 

are displayed. 

3.When error is not found, nothing is 

displayed. 

1.When trouble is found, all trouble except 

E50 ~ E55 and displayed. 


displayed. 

1.When trouble is found, all trouble except 

E50 ~ E55 and displayed. 


displayed. 

For 10 minutes 

after setting. 

For 10 minutes 

after power is 

supplied. 

For one hour 

after setting, 

or until mode 

is released. 

Release of self-check display mode 

Self-check finishes automatically. Error cord display is automatically released 10 minutes later. 

Self-check is not available 

during child lock, cooking 

timer, changing the rotational 

speed of compressor, 

checking the temperature 

of thermistor, damper operation 

and demonstration 

modes. 


during demonstration 

mode. 


during child lock, cooking 

timer, changing the rotational 

speed of compressor, 

checking the temperature 

of thermistor, damper operation 

and demonstration 

modes.

(2) Timing in self-check 

Trouble of Defrost heater : Self-check is conducted after defrosting. 

(Make sure to confirm the display before unplugging the power cord 

because it is automatically reset once the power cord is unplugged.) 

Trouble of Ice maker : Press the switch on the panel for 5 seconds. (Ice making test mode.) 

The setting of ice making compartment blinks on display during the test operation. 

Trouble of Fan motor : Open the door and then closed it. 

When abnormality is found in fan motor, buzzer sound is heard every time the door is closed. 

Trouble of Inverter : Check the error when compressor starts up or is operating. 

Trouble of Thermistor : Self-check is continuously working 

(3) Error display and trouble locating 

1. Display details 

After conducting the self-check referring to 6-2(1), flashes repetitively and the error code will be displayed divided into 

tens’ place and ones’ place if any. 

When two or more errors occur, they are displayed alternately. The error whose code has smaller number has priority to 

be displayed first. There are 0.5 seconds intervals between the error codes 

Self-check 

b)Error code 

Tens’ place 

… 

Temperature Adjustment Display Corresponding values 

REF CHIL 8 4 

SOFT FZR 2 1 

For 2 minutes in self-check, a high-tone sound is heard due to the operation check of damper. 

2. Check point and treatment 

22 

c)Error code 

Ones’ place 

… 

Flashing 

Ice Making Mode Display Corresponding values 

REG QCK 8 4 

CRL STOP 2 1 

Ex.) In case the errors of refrigerator thermistor (E13) and ice maker gear box (E33) are happening simultaneously. 

Tens’ place 

Ones’ place 

Error code 

Display Error 

code 

Display 

Tens' place Ones' place 

Trouble 

E13 E33 E13 E33 

5sec. 

0.5 

sec. 

Detecting method 

(*3) 

0.5 

sec. 

5sec. 5sec. 

Testing (*1) Ice maker is under testing 

Error display 

E 01 

E 02 

E 03 

E 10 

E 11 

E 12 

E 13 

CRL 

STOP 

CRL STOP 

(*4) 

Communication 

error of 

operation panel 

Communication 

error of inverter 

Trouble of 

model judgement 

Trouble of ice 

making tray 

thermistor 

When the following communication 

errors occur 

between control board and 

operation P.C. board: 

•They transmit and receive 

data that has nothing to 

do with settings. 

•They cannot transmit 

and receive data each 

other for about 2 seconds. 

When abnormality is found in the 

communication between refrigerator 

control circuit and inverter 

control circuit in control board. 

(When they do not transmit and 

receive data for 10 seconds.) 

When the model of 

control board is different 

from the one of operation 

P.C. board. 

When there is a short 

or open circuit in the ice 

making tray thermistor. 

0.5 

sec. 

Check point Treatment Control 

1. Connector CN8K, CN7S, CN4D on control 

board 

5-pin wire to wire connector (hinge) 

5-pin connector on operation P.C. board 

2. Trouble of control board and operation 

P.C. board 

Repair the 

contact failure. 

Replace 

Keep the same operation 

as the one before the 

communication error has 

occurred. 

Replace the Compressor OFF. 

control board. 

1. Check the model name of control board Replace Keep operating the unit, 

and conduct error code 

2. Check the operation P.C. board. Replace indication only. 

1. Connector CN7S on control board, Ice gear 

box 6-pin wire to wire connector, 8-pin wire 

to wire connector 

Repair the 


FZR 2. Check the resistance of thermistor. Replace 

Trouble of 

freezer compartment 

thermistor 

Trouble of 

defrost 

thermistor 


or open circuit in the 

freezer 

compartment thermistor. 


or open circuit in the 

defrost thermistor. 

1. Connector CN7S on control board, 

6-pin wire to wire connector 

Repair the 


When the compartment door 

has been closed for 3 hours 

and when freezer compartment 

thermistor is -10 or 

less, ice-detecting operation 

starts. 

After 10 minutes off, the 

compressor repeats 30- 

minute ON and 20-minute 

OFF. 

FZR STOP 

2. Check the resistance of thermistor. Replace 

1. Connector CN7S on control board, Repair the The defrost heater won’t 


contact failure. be turned ON. 

FZR CRL 2. Check the resistance of thermistor. Replace 

Trouble of When there is a short 1. Connector CN7S on control board, Repair the Synchronize the open/ 

refrigerator or open circuit in the 6-pin wire to wire connector 

contact failure. close status of R damper 

FZR CRL 

thermistor 

STOP 

refrigerator compartment 

thermistor. 


with that of compressor 

ON/OFF.

Display Error Display 

code Tens' place Ones' place 

Trouble 


(*3) 

Trouble of When there is a short or 

versa com- open circuit in the versa 

partmentther- compartment thermistor. 

QCK mistor 

Self-check 

Error display 

E 15 

E 16 

E 17 

E 18 

E 30 

E 31 

E 32 

E 33 

E 34 

E 41 

FZR STOP 

FZR CRL 

QCK 

QCK 

FZR CRL STOP 

FZR 

REG 

Trouble of veg- When there is a short 

etablecompart- or open circuit in the 

ment thermistor vegetable compartment 

thermistor . 


making compartment 

thermistor 

Trouble of 

outside air 

thermistor 

Trouble of 

defrost heater 

(*6) 


or open circuit in the ice 

making compartment 

thermistor. 

When there is a short or 

open circuit in the outside 

air thermistor. 

When defrosting is not 

finished in 2 hours. 

23 




Repair the 



1. Connector CN7S on control board, 4-pin 

wire to wire connector 

Repair the 




6-pin, 9-pin wire to wire connector 

Repair the 



1. Connector CN2A on control board 

Defrost heater plug and receptacle, 


Thermal fuse 2-pin, 4-pin wire to wire 

connector 

Replace the 

operation 

P.C. board. 

Repair the 


SOFT FZR 2. Check the resistance of defrost heater. Replace 

3. Check the continuity of thermal fuse. Replace 

SOFT FZR STOP 

SOFT FZR CRL 

Trouble of 

refrigerator 

fan motor 

Trouble of 

machine 

chamber fan 

motor 


maker gear 

box 

•When motor doesn’t 

rotate even though 

power is on. 

•When the waveform, 

which indicates the 

rotation times of motor, 

cannot be detected. 

•When motor doesn’t 

rotate even though 

power is on. 

•When the waveform, 

which indicates the 

rotation times of motor, 

can not be detected. 

When the gear box 

operation is not finished 

in 30 seconds. 

(T0: Defrost thermistor 

temperature at power 

input, T1: Defrost thermistor 

temperature when 

15 minutes have passed 

from the power input) 

•When the difference 

between 

T0 and T1 is T0 T1. (*5) 

1. Connector CN6D on control board, 

Refrigerator fan motor 4-pin wire to wire 

connector 

Repair the 


2. Check refrigerator fan motor operation. Replace 

1. Connector CN4D on control board, 

4-pin connector, 4-pin wire to wire connector 

2. Check machine chamber fan motor 

operation. 

1. Connector CN8K, CN7S on control board, Ice gear box 

6-pin wire to wire connector, 8-pin wire to wire connector 

Repair the 


Replace 

•When S-compartment 

is used as “freezer”: 

S-damper is open when 

compressor is turned on, 

S-damper is closed when 

compressor is turned off. 

•When S-compartment is 

used other than “freezer”: 

S-damper remains open 

for the first 3 minutes and 

then closed for the rest 

of time. 

S-compartment: Versa 

(select) compartment. 

•When R-damper is open, 

V-heater is turned on. 

•When R-damper is 

closed, 

V-heater is turned off. 

•When ice making compartment 

is used as “refrigerator”, 

synchronize I-damper 

with R-damper. 

•When ice making compartment 

is used as “ice making”, 

synchronize I-damper 

with F-damper. 

Compressor is activated 

at “Speed-level 2.” 

The defrost heater is 

stopped and if the next 

defrosting finishes in 2 

hours, the error code will 

disappear . 

•3 minutes later, the refrigerator 

fan motor is reactivated 

to be checked. 

•Until the fan motor gets 

to operate correctly, the 

buzzer sounds every 

time the door is closed. 

•3 minutes later, the 

machine chamber fan 

motor is reactivated to be 

checked. 

•Until the fan motor gets 

to operate correctly, the 

buzzer sounds every 

time the door is closed. 

Repair the 100 minutes later, the 

contact failure. gear box is reactivated to 

be checked again. 

2. Ice gear box frozen point Replace 

SOFT FZR CRL STOP 3. Check the trouble of the ice gear box 

with the ice making test operation. 

Replace 

Clogging of 

Check the compressor and the pipe. When cooling operation 

QCK 

refrigerant 

pipe or trou- 

returns to normal condition, 

the display of error 

ble related to 

compressor 

code disappears. 

SOFT FZR 

CHIL 

Trouble of 

solenoid 

three-way 

STOP 

valve 

When defrost thermistor Connector CN9D on control board 

reads -10 or above in five 5-pin connector in machine chamber 

minutes after the compressor’s 

startup. (*5) 

Repair the 


Check the operation of 

solenoid three-way valve 

and then open the valve.

Display Error Display 

code Tens' place Ones' place 

Trouble 


(*3) 

E 50 

CHIL 

FZR 

Trouble of •When there is any trou- 

inverter circuit ble in the circuit which 

detects current of com- 

(*6) pressor. 

E 51 

CHIL 

FZR 

Trouble of •When the range of bus-bar 

bus- bar volt- voltage is not approx. 

age 

DC 50~380 V. 

STOP 

(*6) 

Self-check 

Error display 

E 52 

E 53 

E 54 

E 55 

E 56 

E 57 

*1 : The setting of ice making compartment will be displayed and blinks during or after ice making test operation. 

*2 : This operation is called the recovery operation: 

If the damper has not operated ever once during the compressor operation, make the damper operate when the compressor stops. 

*3 : When the resistance is , the circuit is deemed open-circuitted. 

When the resistance is 0 , the circuit is deemed short-circuited. 

*4 : Once E01 is detected, other errors would be ignored and not displayed on the panel. 

*5 : Characteristic value may change in order to improve the product. 

*6 : The error codes E50 to E55 are not displayed even if those abnormalities occur at power input. 

Therefore, be sure to perform ice making test operation in order to check if any abnormality indicated by these error codes occurs. (See page 21.) 

*7 : If those errors still continue for 1 minute after the restart, E56 will be displayed again. 

24 


CHIL 

Trouble of •When the inverter driv- 

inverter software ing software malfunc- 

FZR CRL 

reset function 

(*6) 

tions. 

Refer to “Compressor does not operate” at page 29. 

The compressor is suspended 

and reactivated 

Trouble of •When there is no cur- 

10 minutes later. 

startup , synrent at compressor star- 

CHIL 

chronizationtup. or overcurrent •When phase current 

detection exceeds 5.5A at com- 

(*6) pressor startup. 

•When phase current 

exceeds 3.3A during com- 

FZR CRL STOP 

pressor operation. 

•When current of 5.3A or 

more runs into the busbar 

of control board. 

CHIL QCK 

Trouble of 

power supply 

When bus-bar voltage 1. Different voltage of power supply outlet 

(full wave voltage) is DC 

Replace the 

control 

Refrigerator compartment 

room light OFF 

FZR 

voltage 390V or above in power 

board. 

input. 

2. Trouble of relay in the circuit on the control 

(*6) 

board 

Heaters. OFF 

Trouble of EEPROM (IC11M) 

Replace the When abnormality occurs in 

CHIL QCK control board 

(EEPROM 

accumulates data necessary 

for control. 

control 

board. 

power input, the compressor 

is suspended for 10 

related trou- •When the data are not 

minutes. 

ble) 

input accurately. 

When abnormality occurs in 

FZR STOP 

•When microcomputer 

normal operation, the com- 

(*6) cannot read the data. 

pressor keeps operating. 

Defective wir- The errors E50 to E53 

•Error display starts after 

ing connecting keep occurring over one 

it is regarded as E56. 

CHIL QCK or trouble of 

control board 

and a half hour. (the situation, 

which compressor 

•Error display continues 

until defrosting starts or 

cannot be operated, con- 

cooling operation gets 

tinues.) Refer to “Compressor does not operate” at page 30. back to normal. (Error 

display doesn’t disappear 

by unplugging and plug- 

FZR CRL 

ging the power cord. *7) 

•Try to restart compressor 

every 3 minutes. 

Inverter drive When the excess current 

Replace the Try to start the compres- 

CHIL QCK 

module abnor- error is detected before 

mality starting the compressor 

(failure of the IC in the 

inverter drive module). 

control 

board. 

sor every 3 minutes. 

FZR CRL STOP

6-3 BLOCK DIAGRAM OF PRINTED CIRCUIT BOARD 


Operation P.C. board 

•Setting up temperature, feature, quick mode and eco mode for each 

compartment 

•Display of self-check 

•Outside air thermistor 

•Buzzer 

6-4 AUTO ICE-MAKER 


(1) Ice making cycle 

Water supply 

The ice tray is filled with water 

from the water tank. 

(2) Automatic ice maker circuit 

Control board 

Control circuit of refrigerator 

•Read/control each compartment temperature 

(Neuro-fuzzy) 

•Control on timers 

•Operation control of the parts such as fan 

motor or heater, etc. equipped inside/ 

outside 

Parts outside/inside of refrigerator 

For 325V DC system 

•Compressor 

For 230V AC system 

•Defrost heater 

•Vegetable compartment heater 

1&2 

•Rotational heater board 

•Water pipe heater 

•Refrigerator compartment room light 

•Ice making tray heater 

CN3A 

CN4D 

CN2A 

CN7S 

CN9D 

CN8K 

Ice ejection 

Control board 


•Refrigerator fan motor 

•Machine chamber fan motor 

•Motor damper 

•Ice maker gear box 

•Three-way valve 

•Photosynthesis LED 

UV LED 

Blue LED 

•LED for bacteria removal from 

water tank 

After the detection lever checks 

the amount of ice, the ice tray 

is rolled over for ice ejection. 

When the ice storage bin is 

filled with ice, the ice tray does 

not roll over. 

8-pin connector 



25 

Inverter control circuit of compressor 

•Inverter control of compressor 

•Inverter-drive power module 

•Detection of bus-bar voltage 



•Freezer compartment thermistor 

•Refrigerator compartment thermistor 

•Defrost thermistor 

•Door switch (For refrigerator compartment, 

ice compartment & freezer 

compartment) 

•Ice tray thermistor 

•Ice making compartment thermistor 

•Vegetable compartment thermistor 

•Position-specifying switch in ice 

maker gear box 

•Versa compartment thermistor 




Ice making 

Ice tray thermistor watches 

and controls the ice making 

operation 

Ice stock 

Ice is stocked in the ice storage bin. 

Ice making capacity is about 

100 - 120 cubes a day. 

Stock capacity of Ice cubes is 

about 100 cubes. 

(With 8-cube ice tray) 

LED for bacteria 

removal from water 

tank 

Ice making 

compartment 

thermistor 

Ice tray thermistor 

Ice making 

gear box

(3) Operation by ice making test 

Press the 

switch for 5 seconds 

or more. 

(See 6-2(1) “• Self-check 

and error display method 

and operation, Ice 

making test operation” 

Ice stock detective 

lever detects the 

amount of ice. 

Detective lever once 

come down to detection 

point then return to the 

original position. 

The ice tray is 

rolled over and the 

system is reset. 

The ice tray rolls 

over once to drop 

the ice, then return to 

the original position. 

Detection lever 

Ice tray 

Check here. 

Ice making test completes 

(Upper ice making compartment) 

(Lower-left part of refrigerator compartment) 

about 20 seconds later. 

[Check point of automatic ice maker operation] 

*Never touch the automatic ice maker while it is operating. 

After the operational test, a popping sound is heard several times because the operation of three-way valve is checked automatically. 

During the operation, do not insert a hand into the automatic ice maker. 

26 


is operates. 

Remove the lid of 

the water tank then 

check the sounds of 

water running. 

Completion 

When abnormality 

occurs, the error code 

is displayed on the 

panel. 

Inspect the abnormal 

points by referring to 

page 22-24. 

(4) Maintenance for water pump and water pipe 

The inside of the pump can be cleaned after disassembling the pump in the water tank. 

The inside of the pipe can be cleaned after disassembling the water supply pipe in the tank holder. Follow the procedures below 

when disassembling, cleaning, and assembling the pump and the pipe. 

Be sure to explain to customers that they need to clean the water pump and the water supply pipe once a month. 

After the test run, a “pop” sound is heard several times to automatically confirm the proper operation of the change valve. 

Water pump & Light-type bacteria removing filter 

4. Remove the light-type bacteria removing filter 

1. Pull out the pipe. 2. Turn the tank 

pump to detach. 

Water 

Tank 

tank 

pipe 

Water pump 

Water pipe · Tank holder 

3. Pull out the tank pipe, turn the cap 

and wash it in water. 

Normally the filter need not be replaced. However, replace it 

to remove, and then wash 

in the following condition: 

the propeller with water. 

•When the filter is clogged by passing something other than 

•The propeller is 

Tank pipe 

water through the filter. 

made of the magnet. 

Propeller •When the filter is broken. 

Wash it well with water 

Cap In such a case, contact the dealer that you purchased this 

so that no alien sub- 

Cover refrigerator. 

stance remains on it. 

5. Put the parts back in the reverse order of disas- 

Light-type bacteria removing filter 

sembly. 

1. Pull out water supply Water 

2. Separate pieces and wash with water. 3. Reverse steps to replace the pipe. 

pipe. Wipe the tank 

holder with clean cloth. 

•Do not let water flow into 

the tank holder. 

pipe 

Tank holder 

packing 

•Twist the 

aluminum 

pipe to 

Aluminum pipe replace it. 

Side A 

Side B 

Water pipe 

•Replace the water 

pipe. 

Be sure that sides A 

and B fit flush to 

each other. 

(5) Troubleshooting for automatic ice-maker 

The ice-maker gear box may be defective, cooling may be poor or ice cubes may be full in the ice storage bin. 

1. Check inside of the ice storage bin. •Ice cubes are not stored flatly 

and the amount is detected 

as full. 

•Food inside the ice storage bin 

Inspection 

2. Measure the resistance of ice tray thermistor circuit. •Open circuit ( ) or 

short circuit (0 ) 

Replace the ice tray 

thermistor. 

3. Check if the temperature of the freezer compartment 

is cool enough. 

(It takes longer to make ice during summer time 

or if the door is frequently opened.) 

•Not enough Poor cooling 

The water saucer may be defective, or the ice tray may get cracked. 

4. Check the water pipe for dirt, and foreign objects. •Clogging 

Clean the water pipe. 

•Freezing (For freezing, check Deice 

installation and measure Check connection of 

the resistance of water pipe water pipe heater and 

heater and tank heater.) tank heater. 

5. Check the condition of ice tray. •Broken or cracked 

Replace the tray. 

•Not placed properly 

Reinstall it properly. 

6. Disassemble the water pump and check the inside of •Dirt or foreign objects Repair and explain to the 

the pipe. 

user for proper usage. 

7. Tank pipe is clogged , has a hole or is not 

•Clogging, disconnecting Clean / Reinstall it prop- 

properly installed. 

•Hole or crack 

erly. 

Change the tank pipe. 

8. Check the coil resistance of pump motor. •Open or short circuit Check the water pump. 

9. Check if there are any dirt or foreign object which are •Crack or deformation 

difficult to remove in the water tank. Also, check if 

there is any crack or deformation on the tank. 

Change the water tank. 

10. Check the water pipe for dirt, and foreign objects. 

Water in the tank holder Also, check the water pipe position and connection. 

•Clogging, disconnecting 

•Hole or crack 

Clean / Reinstall it properly. 

Replace the pipe. 

Chained ice, 

11. Check the water pump operation by the ice-making 

test 

•Water filling time is longer 

than 9 seconds. 

Replace the control 

board. 

water leaking from the 

ice server 

12. Water spill at the installation of water tank or more water over the full water level may cause to form chained ice. 

13. Measure the water pump coil resistance. •Open or short circuit Change the water pump 

motor. 

Trouble with ice-making 

Water or ice is on the 

ice tray 

No water or ice in the ice tray 

The ice does not 

come out from the 

tray 

Water in 

water saucer 

No waterdrops in water 

saucer

6-5 FLOWCHART OF TROUBLE CRITERION 


Refrigerator compartment/ Slide chilled compartment 

[1] 

Is the temperature of 

refrigerator compartment/ 

set to “Low”? 

Yes 

Only food around the 

air outlet get frozen 

No 

No 

Excessive cooling No cooling, poor cooling 

No 

Yes 

Set the temperatures 

to “Low”. 

Keep the food away 

from air outlet 

27 

Are the temperature of 

refrigerator compartment/ 

set to “High”? 

Yes 

Open the refrigerator 

compartment door with 

a magnet on the door 

switch to check that cold 

air blows from the outlet. 

(See 1) 

Yes 

Expose the damper (for refrigerator compartment/ slide compartment) 

so that its operation can be visibly checked and 

conduct an ice-making test. Does the baffle open/close ? The baffle does not operate 

(Wait 1 minute for self-check). 

(See “Self check method and its operation, Ice making 

test operation” at page 21.) 

Normal 

Is the motor damper (for refrigerator compartment/ slide 

Yes 

compartment) covered with frost? 

Check the refrigerator compartment thermistor 

Put refrigerator compartment thermistor into ice water (0 ), disconnect 

the 4-pin connector, and measure resistance between 

(white) and (white). •Resistance at 0 :approx. 6-7k . 

Weak Cooling Strong 

Refrigerator Low Middle High Chilled 

compartment 

Control board 

CN7S 


No 

No 

Repair the frosted part. 


thermistor abnormal Replace the refrigerator 

compartment thermistor 


thermistor 

Set the temperatures 

to “High”. 

Proceed to [5] at page 

31. 

Replace the motor damper (for refrigerator 

compartment/ slide chilled 

compartment) 

Motor damper is combined with 

fan grille assembly. 

1 

Refrigerator 

compartment 

Ice 

making 

compartment 

Versa 

compartment 

Attach a 

magnet bar 

here.


[2] 

Compressor does not operate 

[3] 

Filter board 

CN1 CN12 

Noise filter 

Poor cooling 

1 Is the set temperature of freezer compartment set to “High”? 

Yes 

2 

3 

Does cool air come out of air outlet when opening the refrigerator 

compartment door and attaching a magnet bar on the door switch ? 

Yes 

Check freezer compartment thermistor. 

Dip freezer compartment thermistor into ice water (0 ), and 

measure the resistance between terminal (white) and 

(white) by detaching 4-pin connector at the left-back bottom of 

vegetable compartment. 

•Resistance at 0 :approx. 6~7k . 

Defective thermistor 

Replace freezer compartment thermistor 

Not cooling at all (In case any error codes doesn’t appear as shown in page 29,30 even though Ice select switch is pressed for 5 seconds) 

Does AC 230V run between and , terminals 

of CN1 on filter board? 

Yes 

Does AC 230V run between and , terminals 

of CN12 on filter board? 

Yes 

Detach each connector CN2A on 

control board check the continuity 

between terminals and 

respectively. 

(Check if there is a short or open 

circuit in the motor protector.) 

Continuity detected 

Detach connector CN50G on control 

board and check the resistance 

respectively between terminals of 

, and :approx. 9.3 

Continuity detected 

Check the error display of selfcheck 

after turning on and off the 

power supply. 

With all the connectors connected. 

Inverter-related parts may be 

defective. Conduct ice making 

test operation. (See page 29,30 

for error codes.) 

No 

continuity 

No 

No 

Control board 

6-pin connector in machine chamber 

CN2A CN50G 

Control board 

28 

No 

No 

Normal 

CN7S 

Abnormal 

Set the temperature to “High”. 

Proceed to “The refrigerator fan motor does not work.” 

When compressor 

operates, display 

indicates E41 as a 

result of self-check. 

M 

Compressor 

M Motor 

protector 

Normal 

Abnormal 

Normal 


Yes 

Is refrigerator in the demonstration mode? Release the demonstration mode. (See page 11.) 

No 

No 

continuity 

Inspect power-supply wiring such as power cord and 

breaker etc. 

Replace the filter board. 

Motor protector (open circuit) 

By measuring the resistance, 

ensure that the circuit is open. 

Disconnect 6-pin connector 

in machine chamber to check 

resistance between terminals of 

, and : approx. 9.3 

Abnormal 

Measure the resistance of compressor’s 

winding between terminals 

of black, white, and red : 

approx. 9.3 

Check connector contact. 

Exchange the unit 

Replace solenoid 

valve coil. 

Freezer 

compartment 

thermistor 

Replace the lead wire 

assembly (Lead wire of 

compressor)

Inverter-related indication “Compressor does not operate” 

Error 

code 

Abnormality Possible cause Symptom Treatment 

E50 

E51 

E52 

E53 

Trouble of 

inverter circuit 

Bus-bar 

voltage is 

abnormal. 

Trouble of 

inverter software 

reset function 

•Abnormal startup 

•Abnormal 

synchronization 

•Trouble of 

overcurrent 

detection 

•When there is 

any trouble in the 

circuit which 

detects phase 

current of compressor. 

•Power supply 

voltage is 

abnormal. 

•Defective reactor 

on the N/F board 

•When the inverter 

driving software 

malfunctions due 

to electric noise. 

•Compressor 

motor gets locked. 

•Defective circuit 

on control board 

•Defective contact 

of CN50G on 

control board 

•Defective contact 

of machine 

chamber 6-pin 

connector 

Compressor 

does not 

rotate. 

Compressor 

does not 

rotate. 

Compressor 

does not 

rotate. 

Compressor 

does not 

rotate. 

29 

Replace the control board. 

Check the error code by performing the ice making test operation. 

E52 display again. 

Start 

Measure the voltage of 

power supply. 

Does AC 230V run 

between CN2A terminals 

and , on 

the control board? 

(See page 40.) 


253V or more 

207V or 

more 

Arrange 

power supply 

to obtain 

the rated 

voltage, 

207~253V. 

Arrange power supply to make the voltage 

within 253V and conduct the following 

checks. 

No 

Check the 

connection 

between filter 

board and 


Yes Normal 

Replace the Replace the 

control board. filter board. 

Abnormal Connect 

them 

properly. 

Unplug the power cord and wait more than 10 minutes then plug it again. 

Start 

Disconnect 6-pin 

connector in 

machine chamber 

to check resistance 

between 

each terminal of 

, and : Are 

they approx. 9.3 

(20 )? 

Yes 

*Is compressor 

energized at 

startup? 

Exchange 

the unit. 

Measure the 

resistance 

of compres- 

No error code display 

Explan to customer 

No sor’s winding No 

between each 

terminal of 

, and : Are 

they approx. 9.3 

(20 )? 

Yes 

*Replace lead wire assembly C. 

No 

Check the connection of the 

connector CN50G on the 

control board or the machine 

chamber 6-pin connector. 

Yes Normal 

Replace the 


*If control board is normal, compressor is energized 

every 10 minutes. 

Compressor vibrates at startup when it is being energized. 

Touch it with your hand to check. 

Abnormal 

Exchange 

the unit. 

Connect them 

properly.

Inverter-related indication “Compressor does not operate” 

Error 

code 

Abnormality Possible cause Symptom Treatment 

E56 

•Defective wiring 

continuity 

•Trouble of the 

control board 

Compressor 

Point+2 (to measure resistance) 

For checking the connection 

to compressor 

E57 

Lead wires connected 

to compressor 

Inverter drive 

module abnormality 

•Defective connection 

of connectors 

related to compressor(boardside,relay,compside) 

•Defective wiring 

connecting of the 

compressor 

•Trouble of control 

board 

•Trouble of compressor 


in machine chamber 

Point+1 (to measure resistance) 

For checking the wire to wire 

connection condition. 

(1) or (2) 

(1) Compressor 

cannot be 

activeted for 

more than 

1.5 hours 

(2) Overcurrent 

detection 

error 

occurred 

before the 

compressor 

is actived. 

Control board 

Failure of the Excess current 

inverter drive mod- is detected in 

the inverter drive 

ule in the control module before 

P.C. board 

starting the compressor, 

and the 

compressor does 

not start rotating. 

1. Locate the trouble and decide the treatment 

•Decide the treatment by checking the followings. 

(1) Defective connector connections. 

(board-side, wire to wire, comp-side) 

(2) Resistance of compressor’s winding 

2. Flowchart of troubleshooting 

3. Recheck after treatment 

•After any treatment is tried, unplug and plug power cord 

again to check if the compressor operates properly. 

•If the compressor can operate properly for more than 1 

minute after power cord is plugged again, it’s presumed that 

the cause of trouble is eliminated. 

*If the cause of trouble cannot be eliminated, E56 will be displayed 

again 1 minute later after the power cord is plugged 

again. 

*If the control board has been replaced, E56 won’t be displayed 

even though the cause of trouble is still not eliminated. 

In such a case, perform the ice making test operation to 

check what the error is. At the same time, also confirm that 

the compressor is operating for more than 3 minutes and 

each compartment is getting cooled. 

30 

start 

Connector CN50G on the 

control board is properly 

connected? 

6-pin wire to wire connector in 

machine chamber is properly 

connected? 

The connector of compressor 

is properly connected? 

Disconnect 6-pin wire to 

wire connector in machine 

chamber and measure 

the resistance 

between each terminal 

of and (Pont 1). 

Approx. 

Is compressor being 

energized at startup? 

Exchange the unit 

Yes 

Yes 

Yes 

No 

Check 

Yes Yes 

Yes 

No 

No 


No 

No 

Connect properly. 

No 

Exchange 

the unit 

Replace the lead wire connected to compressor. 


Treatment 

Replace it only when error display 

keeps blinking even though all the 

above mentioned connectors are 

properly connected.

Poor defrosting 

[4] 

The refrigerator fan motor does not work 

[5] 

1 Short-circuit the terminal and of the compulsory 

defrosting terminals (CN1M) of the control board to actuate 

the compulsory defrosting function and check whether the 

defrost heater is working properly. *1 

2 Check if there is conduction between thermal fuse 

and defrost heater. 

1 

Control board 

CN7S 

CN2A 

Doors 

3-Pin connector 

Between 

1 and 3 

No 

Yes 

No 



2 Unplug and plug the power cord to check if 

machine chamber fan motor is rotating. 

3 

5 


31 

Poor cooling 

No 

Room light is turned on and off properly. 

Any one of the doors 

are open 

OFF 

etc 

2 -pin connector 

Yes (heats up) 

Thermal fuse 


Defrost thermistor 

Room light 

is not turned 

on and off. 

Door switch for refrigerator compartment (right and left) and ice making compartment. 

Control board 

Unplug and plug the power cord to perform self-check on 

refrigerator fan motor. Is the display indicating abnormality? 

Running 

Check the door switch for conduction. 

•Open and close the refrigerator door several times 

and check if the room light will be turned on and off 

(Room light should get turned off when the door comes 

10mm close to the refrigerator body .) 

•Close the refrigerator compartment door until the light is 

turned off . Open and close the ice-making-compartment 

door , and from the space of refrigerator compartment 

door, check that the room light is turned on and off. 

Check if there is continuity in 4-pin fan motor connector in 

versa compartment. 

CN7S 

CN4D 

8-pin 

connector 

4-pin 

connector 

R-door (right, left): closed 

Door of the ice making 

compartment : closed 

1 2 

ON 

Reed Switch board 


2-pin 

connector 


Yes 

Not rotating 

Conduction detected 

No conduction 


(right and left)/ Ice making 

compartment door switch 


door switch 

Refrigerator 

fan motor 

4 Check the conduction by 

disconnecting the CN7S 

on the control board. (See 

figure below.) 

Check the following and explain the 

result: half-open door, space between 

gaskets, the amount of ice. 

Replace the defrost heater and the 

thermal fuse. 

Check the resistance of the defrost 

thermistor. 

Normal 

 

Short circuit 

CN1M 

Compulsory defrosting 

*1 The compulsory defrosting will 

not work when the temperature 

of the defrost thermistor is 14°C 

or more. 

Replace refrigerator fan motor. 

Note: Refrigerator fan motor is combined 

with fan grille. 

Check if CN4D connector on control 

board is connected properly. 

If it is, replace the control board. 

Abnormal 

Contact failure of 

connector. 

Connect it properly. 

Check if the connector on 

the door switch is connected 

properly. If it is, replace 

the door switch. 

Connect the connectors properly. 

Replace refrigerator fan motor. 

Note: Refrigerator fan motor is combined 

with fan grille. 

If any one of those doors are open, the switch between 

and , terminals of 3-pin connector, will be OFF) 

5~10mm 

Left door of refrigerator 

comparttment 

Door of ice 

making 

compartment 

1 

Right door of refrigerator 

compartment 

Door of 

versa 

compartment 

Door of vegetable 

compartment 

Door of freezer 

compartment


[6] 


vegetable compartment 


No 

Yes (Go to or ) 

Yes 

Excessive cooling poor cooling 

Set the temperature to 

“Low”. 

Check the thermistor, vegetable compartment heater, 

and control board. 

Is one of these error codes indicated when conducting 

self-check of operation P.C. board? 

Refrigerator compartment thermistor: E13 

Vegetable compartment thermistor: E16 

Outside air thermistor: E18 

No error code is indicated. 

Is there resistance of 2.9k 

on the wiring side (resistance 

of vegetable compartment 

heater 1) between connector 

CN3A and CN2A on 

control board with connector 

disconnected? 

Yes 

No 

Check if doors are hermetically closed. 

32 



set to “High”? 

E18 is indicated. 

Follow the refrigerator / slide chilled compartment flowchart on page 27. 

OK 

Explain proper usage to customer 

E13 or E16 is indicated. 

No 

(Go to or ) 

Is there a resistance of 

approx. 8.9k between 

and , terminals of 4-pin 

connector which is located 

at the right top of fan grille? 

When the vegetable compartment is cooled excessively. 

Is there voltage AC230V between connector CN2A and CN3A 

on control board? Measure the voltage for over 10 seconds. When 

an analog tester detects 230V, consider the control board normal. 

(230V is outputted every 10 seconds.) 

Yes 

Are the temperatures 

of refrigerator compartment/ 

freezer compartment 


Is there a short (0 ) or open 

( ) resistance in each thermistor 

? 

Check refrigerator / slide chilled compartment is excessively cooled (poorly cooled). 

Control board 

CN2A 

CN3A 

CN7S 

CN8K 

CN4D 





Yes 

0 

or 

Operation P.C. board 

Outside air 

thermistor 

TH1 

No 

No 

Yes 

Yes 

No 

Is there a resistance 

of approx. 

4.4k between 

and , terminals 

of 2-pin connector 

which is located 

at the left-back 

bottom of vegetable 

compartment? 

Refrigerator 

compartment 

thermistor 


“High”. 

Set the temperatures to 

“Middle” or “High”. 

Replace the operation P. C. 

board. 

Replace the defective 

thermistor. 

Check the contact of connector 

connecting each 

thermistor and connector 

CN7S on control board. Fix 

the incomplete contact. 

Replace the vegetable 

compartment heater 1. 

Note: Vegetable compartment 

heater 1 is combined with 

fan grille. 

0 

or 

Replace the vegetable 

compartment heater 2. 

Note: Vegetable compartment 

heater 2 

is combined with 

partition V/ F. 


Vegetable 

compartment 

heater 1 

Vegetable 

compartment 

heater 2

Versa compartment/ Ice making compartment 

[7] 

only applies to versa compartment. Excessive cooling 

It is set to 

"Refrigerator" or 

"Chilled". 

Only the food around 

cool-air outlet is excessively 

cooled. 

No 

Control board 

Yes 

Make the operation of 

motor damper (for versa 

compartment) 

visible, and conduct ice 

making test. Check that 

the baffles open and 

close. 

(Wait 1 minute for selfcheck.) 

(See “• Self-check and 

error display method and 

operation, Ice making 

test operation” on page 

21.) 

Which operation mode is 

versa compartment set to? 

Normal 

Not frosted 

CN4D 

CN7S 

CN9D 

Is the 

temperature 


Yes 

The baffles 

do not function 

Is the motor damper covered with frost? 

Set the temperature 

to “Low”. 

Disconnect CN9D and measure 

the resistance between 

and , and between and . 

Check that the winding of motor 

damper (for ice making compartment/ 

versa compartment) has a 

resistance of approx. 415 

Check the versa compartment thermistor. 

Dip the versa compartment thermistor into the ice water 

(0 ) and disconnect 6-pin connector for fan grille at the 

back of versa compartment. Measure the resistance 

between terminal (white) and (white). 

•Resistance at 0 : Approx. 6~7k 

Check the ice making compartment thermistor. 

It is set to “Soft freezing”. 

Dip the ice making compartment thermistor into the ice 

water (0 ) and disconnect 6-pin connector of fan grille at 

the back of ice making compartment. Measure the resistance 

between terminal (white) and (white). 

•Resistance at 0 : Approx. 6~7k 

No 

Keep food away from 

air outlet in storing food. 

Is connector CN9D on 

control board connected 

properly? 

Frosted 



33 

Yes 

Does cool air come out 

of air outlet when opening 

the refrigeratorcompartment 

door and 

attaching a magnet bar 

on the door switch? 

Yes 

Normal 


M 

No 

M 

Versa 

compartment thermistor 

No cooling; poor cooling 

Which operation mode is versa compartment set to? 

It is set to 

“Refrigerator” or 

“Chilled”. 

Is the temperature 

set to “High”. 

Yes 

1 

Connect the connector 

properly. 

Ice making 

compartment 

thermistor 

Motor damper 

(versa compartment) 

Motor damper 

(for refrigerator compartment/ 

ice making compartment) 

Refer to the section: 

“The refrigerator fan 

motor does not work”. 

0 

or Is 6-pin connector which is in connector cover 

on the back of versa compartment connected 

properly? 

(6-pin connector is connected to motor damper. 

Refer to the figure below.) 

Defective thermistor Replace the versa 


Defective thermistor 

No 

It is set to “Soft freezing”. 

No 

Set the temperature to “High”. 

Check the set temperature in freezer compartment. 

Is the temperature set to “High”? 

No 

No 

Yes 

Replace the motor damper (for versa compartment) 

Replace the fan grille as well as the motor 

damper because they are combined together. 

Repair the frosted part. 

Replace the ice making 


1 


“High”. 

Refrigerator 

compartment 

Ice 

making 

compartment 

It is set to “Freezer”. 

Versa 

compartment 

Attach a 

magnet bar 

here.

6-6 TROUBLE CRITERION OF MAIN PARTS 


Components/ 

Part Name 

Check Method and Criterion 

Compressor 

Motor 

protector 

Refrigerator 

fan motor 

Machine 

chamber fan 

motor 

White 

1 2 

Black 

1 

Red 

Measure the resistance 

with a tester. 

Contact point 

2 

Model 

Rated input 

Starting current 

Running current 

Winding 

(Black-White) 

(White-Red) 

(Red-Black) 

34 

W 

A 

A 

EFI100E13DAH 

45/159 (1620/4800rpm) 

2.0 

0.63/2.19 (1620/4800rpm) 

Normal 

9.3 

(20 ) 

Model MM3-71CCV 

Abnormal 

(faulty) 

Open ( ) 

or 

short circuit (0 ) 

Connected 

point 

Open 

100 ± 50 or more 

Energize it at 17.0A, 25 for 16 seconds at the longest. 

Close 

61±8 or less 

Measure the resistance with a tester. (Ambient temperature : Room temperature) 

Model 

Number of pole 

Diameter 

Normal Abnormal (faulty) 

Less than 1 Open circuit (0 ) 

UDQM002B3 

DC brushless 

10 

150 (Mixed flow fan) 


1 2 3 4 : Pin No. 

Normal 

Between and (GND and IC 

Power): About 12k 

Between and (Power and 

IC Power): 

IC 

4 

3 

2 

1 

IC Power 

Power 

FG 

GND 

Model 4715JL04WS16G51 

Operation method During compressor operation 

Abnormal 

(faulty) 

Between and 

: open circuit ( ) 

Between and 

:short circuit (0 ) 


4 3 21 Pin No. 


Between and (GND and 

Vcc): About 25k 

Between and (Vs and Vcc): 

Between and 

: open circuit ( ) 

Between and 

:short circuit (0 ) 

Parts Mounted 

Position 

In the machine 

chamber at the 

rear side of the 

frame. 




frame. 

In the fan grille 

of the freezer 

compartment. 




frame.

Components/ 

Part Name 

Water pump 

motor 

Motor damper 

for refrigerator 

compartment/ 

ice making 

compartment 

Motor damper 

for versa compartment 



Measure the winding resistance. 

Winding 

Blue-White 

Red-Yellow 

( ) 

Measure the winding resistance. 

Winding 

Blue-White 

Red-Yellow 

( ) 

35 


16 (Approx.) 

Open ( ) or 

short circuit 

(0 ) 


415 

(Approx.) 

Red 

Yellow 

Red 

Yellow 

Open ( ) or 

short circuit 

(0 ) 

Blue White 


415 

(Approx.) 

Open ( ) or 

short circuit 

(0 ) 

Blue White 

Parts Mounted 

Position 

Under the water 

tank holder in 

refrigerator compartment. 


for freezer 

compartment. 

Connector is at 

the left-back bottom 

of refrigerator 

compartment. 


for freezer 

compartment. 

Connector is at 

the back of versa 

compartment.

Components/ 

Part Name 

Vegetable 

compartment 

heater 1 

Vegetable 

compartment 

heater 2 

Water pipe 

heater 



Operation method 




8.9k (Approx.) Open circuit ( ) 

The heater is turned on when vegetable compartment 

thermistor has reached a lower temperature than the set 

temperature for vegetable compartment. 





When ice-making thermistor has reached approx. 10 or 

below, the heater is turned on with energizing rate adjusted 

by the set temperature of refrigerator compartment and 

freezer compartment. 

36 



The heater is turned on when vegetable compartment 

thermistor has reached a lower temperature than the set 

temperature for vegetable compartment. 

Parts Mounted 

Position 


Rated input W 


177 

The heater is energized while defrosting. 

(Defrosting is finished when the evaporator is 14± 1.5 or more) 

At the drip tray 

under the evaporator 

of the 

freezer 

Measure the resistance with a tester. (Ambient temperature : Room temperature) compartment. 


325 

(Approx.) 

Open circuit ( ) 


at the back of 

vegetable 

compartment. 

In partition V/F. 

Under the water 

tank holder.

Components/ 

Part Name 

Rotational heater 

board 

Ice making 

tray heater 




37 



While compressor is operating, the heater is turned on. 

When compressor stops, the heater is suspended for the 

first 20 minutes and then reactivated. 





During CRYSTAL ICE mode 

(The heater is turned on 5 minutes after water is 

supplied, until 4 hours.) 

Parts Mounted 

Position 

In partition of 

refrigerator compartment 

door 

Lower part 

of ice tray

Components/ 

Part Name 

Three-way 

valve 

1 2 3 4 5 

B A COM B A 

A 5 

A 2 

1 

B 


3 

4 

COM B 

Check the operation of three-way valve 

38 

Model NSCE001DC1 

Normal Abnormal 

54~56 (Gray 

[common] A/ A/ B/ 

B each phase) 

Open ( ) or 

short circuit 

(0 ) 

Check the operation by following either (1) or (2) below. When a popping sound is 

heard 1 to 25 times, it is considered that the valve is operating normally. The sound 

is clearly heard around the back of the product. 

(1) Reset the power supply. Check the operation right after this. 

(2) Ice making test. Check the operation right after the test is over. 

Parts Mounted 

Position 

Thermistor Measure the resistance with a tester according to the following graph. 

Refrigerator 

(Thermistor resistance values against temperature) 

compartment 

thermistor 

•Resistance measured under the ambient temperature from -50 

1. 200 to 500k •••••••••••••••••••Normal 

2. Out of the above range •••••••••Abnormal 

to +50 

Back of the 

refrigerator 

control panel 

Thermistor Check Procedure 

Defrost 

35 

30 

Refrigerator 

compartment 

Ice making tray Thermistor resistance 

thermistor 

values against temperature 

Freezer 

compartment 

Defrosting 

Outside air thermistor 

(In the operation 

Versa 

P.C. board) 

compartment 

•Thermistor resistance value will vary thermistor 

with the change of temperature. Evaporator 

•Take the temperature around the 

thermistor, and then measure thermistor 

resistance using a tester. 

The relation between resistance and 

temperature is as shown on the left side. 

Resistance values 

25 

20 

15 

10 

5 

0 

Ice making 

compartment 

Vegetable 

compartment 

-20 

Inner 

thermistor 

-10 

0 10 20 30 

Temperature 

Troubleshooting with self-check 

(1) If the self-check indicates the abnormality 

of thermistor when the power is 

turned on, measure the resistance of the 

thermistor. 

•If there is a short circuit in the thermistor, 

there may be a defect in the contact 

of the connector or the element of the 

thermistor. 

(2) When the self-check indicates the 

abnormality of thermistor a few seconds 

after the power is turned on, check the 

contact of the connector. 

Ice making 

thermistor, 

Versa 

compartment 

thermistor, 

Vegetable 

compartment 

thermistor 

and Freezer 

compartment 

thermistor 


of each 

compartments. 

Ice making 

tray 

thermistor 

In the ice 

making 

compartment. 

Outside air 

thermistor 

In the operation 

P.C. board. 




frame.

Components/ 

Part Name 

LED for bacteria 

removal from 

water tank 

(12V DC) 

Vegetable compartmentphotosynthesis, 

UV 

LED, Blue LED 

(12V DC) 


6-7 TEST POINT DIAGRAM OF FILTER BOARD 


AC 230V 

Timing in 

making contact 

Abnormal 

condition 

LED 

Timing in 

making contact 

Abnormal 

condition 

•After water is supplied to the ice tray. 

•After the ice level sensor lever detects that ice storage 

becomes full. 

•While the door is kept open for maximum of 5 minutes. 

When the door is opened, LED goes out within 5 minutes. 

Make sure if the connector is securely connected. 

Note: LED cannot be replaced individually because 

it is embedded in the tank holder. 

Photosynthesis LED 3 pieces + UV LED 1 piece + Blue LED 1 piece 

Photosynthesis Always 

LED 

UV LED 

Blue LED 

After water is supplied, and full ice is detected; When the 

door of refrigeration compartment, ice making compartment, 

or freezer compartment is open. (5 minutes maximum) 

Means Check with the diode range( ) of tester. (Use a 

tester equipped with diode range.) 

Photosynthesis 

LED 

UV LED 

Blue LED 

LEDs light in following 

colors at the above timing. 

Photosynthesis LED: Orange 

UV LED: Bluish white 

Blue LED: Blue 

The pointer of the tester does not shake when measuring 

between 4-pin connector No.1 (-) and No.2 (+). Make 

sure the pointer of the tester does not shake even if the 

polarities are reversed. Resistance: Short-circuited (0Ω) 

The pointer of the tester does not shake when measuring 

between 4-pin connector No.3 (+) and No.4 (-). Make 

sure the pointer of the tester does not shake even if the 

polarities are reversed. Resistance: Short-circuited (0 ) 

Note: LED cannot be replaced 

individually because it 

is combined with the 

fan grille and partition 

V/F. 

Use a tester equipped 

with a diode range 

39 

UV/Blue 


LED 

4 3 2 1 


UV LED 

AC 230V 

Blue LED 

Parts Mounted 

Position 

On the external 

surface of the 

tank holder 

On the ceiling 


(Vegetable 

compartment 

LED board)

6-8 TEST POINT DIAGRAM OF CONTROL BOARD 


7 

5 

AC 

230 V 

3 Defrost 

heater 

1 

CN2A 

~ 

CN3A 

1 Ice tray heater 

3 Water pipe heater 

5 Rotational heater board 

7 Vegetable compartment heater 1, 2 

9 Refrigerator compartment room light 

11 Refrigerator compartment room light 

CN50G 

Compressor 

11 Power supply of three-way valve 

12 

CN9D 

5 W phase 

3 V phase 

1 U phase 

9 LED for bacteria removal from water tank, Vegetable compartment photosynthesis, UV LED, Blue LED 

10 

1 

2 

3 

4 

5 

6 

7 

8 

Electromagnetic three-way valve 

Damper for ice making 

compartment / versa compartment 

CN4D 

10 

11 

12 

13 

14 

15 

16 

Damper for freezer 

compartment 

DC +5V 

(Inverter circuit) 

Damper for refrigerator 

compartment / slide compartment 

– 

+ 

1 

2 GND 

3 GND 

4 Machine chamber fan motor (+) 

5 Refrigerator fan motor FG signal 

6 Machine chamber fan motor / Refrigerator fan motor driver IC power source 

7 Machine chamber fan motor FG signal 

8 Fan motor + 

9 

40 

DNG 

DC280 ~ 330V 

– 

+ 

CN8K 

1 Reception of operation panel data 

2 Power supply to operation panel data 

3 

4 GND 

5 Ice maker position switch 

6 Water pump - 

7 Ice maker (reverse) 

8 Ice maker (rotation) 

DC+12 ~ 20V 

(Inverter circuit) 

– 

+ 

CN7S 

1 

2 Vegetable compartment LED 

3 Door switch input 

4 Freezer compartment thermistor 

5 Ice making compartment thermistor 

6 Vegetable compartment thermistor 

7 Versa compartment thermistor 

8 

9 Defrost thermistor 

10 Ice making tray thermistor 

11 Refrigerator compartment thermistor 

12 

13 

14 5V com 

Compulsory 

defrosting by 

short circuit 

– 

+ 

– 

+ 

DC+5V 

(Refrigerator 

control 

circuit) 

DC+12 ~ 

13V 

(Refrigerator 

control 

circuit)

7 


NAMES OF THE PARTS 

AUTO-Shelf 

Two-way 

flexishelf 

Free pocket (S) 


Bottle pocket (S) 

Rotating 

partition 

The rotating partition 

may get dameged, 

when it is turned up 

Free egg shelf 

Water tank 

Automatic ice maker 

(Ice making compartment) 



Refrigerator 

compartment room light 

Slide case 

Vegetable case 

LEDs 

Lighting up vegetables 

to enhance vitamin and 

polyphenol 

Ice storage bin 

Freezer Ice server 

compartment 

41 

Free pocket (L) 

AUTO-Shelf 

Lid of slide 

chilled case 


Bottle pocket (L) 

Versa compartment 

Versa compartment is applicable to freezer, soft freezing, 

chilled and refrigerator 

Versa compartment is set to soft freezing 

mode at factory shipping. 

Vegetable 

stand 

Operation panel 

ROOM button SELECTION / 

QUICK button 

Water supply port cap 

Water tank lid 

Water tank (app. 1.2L) 

Pipe 

Water supply pump, 

Light-type bacteria 

removing filter 

Water supply pipe 

Alumi-num tray 

Freezing case 

(upper) 

Freezing case 

(lower) 

ECO MODE 

button 

For freezing only 

Freezable 500 ml PET bottles 

can be placed in upright. 

Food storage limit line 

ICE SELECT 

button 

Versa case 

V-LED lamp 

Ice tray 

Cannot be removed. 

Soundproof mat 

Reduces the 

sound of ice 

dropping into 

the storage bin. 

Do not discard. 

Do not place food adove the food storage limit 

line marked on the freezing case. (bottom case)

8 

DISASSEMBLY INSTRUCTIONS 


Plug out before work!! 

Check the automatic ice-maker pressing ice making stop switch. 

In assembling & disassembling parts seven kinds of screws and rivets are used. Do not mistake to use them. 

4 12 

Stainless steel 

OPERATING PROCEDURE PHOTOS 

1. Elect cover Control board 

(1) Remove 5 screws fixing the elect cover and the rivet on the 

upper rear side of the refrigerator. (See photo 1) 

Control board 

4 12 (Black) 

With metal washer 

(2) Disconnect the connector to remove the control board. 

Caution on assembly 

4 16 (White) 

With plastic washer 

Firmly connect the lead wires and the connector. Ensure the 

wires are not pinched. 

2. Parts inside the refrigerator compartment: AUTOshelf 

(1) Remove two-way flexishelf from the refrigerator compartment. 

AUTO-shelf 

Move the lever to the right, and slide the AUTO-shelf to the 

uppermost position. (See photo 2) 

Push the catches (4 places) inward, and remove the AUTOshelf 

from the metal stoppers. Lift up and remove the AUTOshelf 

toward you. (See photo 3) 

Remove the metal stoppers in front, back, left, and right sides 

of the unit. 


Specified screw 

First, install the metal stoppers to the unit. Then, place the 

AUTO-shelf on top, and push the AUTO-shelf downward until it 

clicks into place (4 places). Refer to Photo 4, 5 for the direction 

of the metal stopper installation. 

Photo 5 

Metal 

stopper 

42 

Photo 1 

Photo 2 

Photo 3 

Photo 4 

Rivet 

Lever 

Catches 

Metal 

stopper 

AUTO-shelf 

Rivet 

AUTO-shelf 

Rivet 

5 fixing screws 

Two-way 

flexishelf 

AUTO-shelf 

Elect cover 

Lever 

Catches 

Catches Catches 

Ceiling of slide 

chilled compartment 

Metal 

stopper 

Catch


(with free egg 

shelf (S)) 


Removing the AUTO-shelf from the AUTO-shelf frame. 

Remove the catches in the back (3 places), and lift up the 

AUTO-shelf as shown in Photo 7. (See photo 6, 7) 

The catches in front (4 places) will detach. Pull the AUTO-shelf 

toward you to remove. 

3. Parts inside the refrigerator compartment: Vertical 

partition Right rail of the slide compartment Left 

rail of the slide compartment Room light cover 

Control panel (Upper/ Lower), Duct R (Upper/ Lower) 

(1) Remove the slide chilled case, AUTO-shelf and two-way flexishelf 

from the refrigerator compartment. 

Vertical partition 

Remove the small item case and the slide chilled case. 

Pull out the ceiling by unhooking the front catches on both 

sides. 

Remove the slide chilled case lid. 

Remove the vertical partition. 

Ceiling of slide 

chilled compartment 

Slide chilled case lid 

Vertical partition 

Right rail of the slide compartment 

(2) Slide the right rail out toward you. (See photo 8) 


Left rail of the slide compartment 

(3) Remove the rivet at the right rail of the slide compartment, 

and slide the right rail toward you. (See photo 9) 

Room light cover 

Push up the lower catch, and pull the room light cover toward 

you. 

Detach two upper catches to take out the cover. 

(See photo 10) 

43 

Photo 6 

Photo 7 

Photo 8 

Photo 9 

Photo 10 

Catch Catch 

Rivet 

AUTO-shelf frame 

AUTO-shelf 

Catch 

AUTO-shelf AUTO-shelf frame 

Control panel 

Right rail of the 

slide compartment 

Left rail of the slide 

compartment 

Catches 

Catch 

Room light 

Control panel 

Room light cover


Control panel Duct R 

(4) Remove rivet , and pull out the mirror hinge on the lower left 

of the control panel to remove the connector. (See photo 11) 

(5) Remove rivet (2 rivets) in the upper left and right side, screw 

(1 screw) in the lower left side. 

Detach catches (5 places). (See photo 11) 

Lamp thermistor holder 

(6) Remove 3 screws and 4 catches. (See photo 12) 

Control panel assembly 

(The assembly consists of the following: Control panel, and duct R). 


To prevent poor contact of connectors, connect them properly. 

Fix the control panel by inserting the lower catches (2 places) 

into the floor of refrigerator compartment. 

4. Parts inside the ice making compartment, versa compartment, 

vegetable compartment, and freezer compartment 

Partition I/S cover Partition I/ S Partition I/ S/ V 

Cover (IM) Automatic ice maker assembly Cover 

(lower) Partition V/ F Connector cover (right/ left) 

Fan grille Defrost heater, Drip tray, DEF thermistor 

(1) Remove interior parts out of ice making compartment, versa 

compartment, vegetable compartment, and freezer compartment. 

(2) To detach them, pull out the doors of ice making compartment, 

versa compartment, vegetable compartment, and freezer compartment. 

Partition I/ S cover 

(3) Remove screw (2 screws) at the front of the refrigerator and 

4 rollers. Remove the catches at the both sides of partition 

I/S cover. (Remove them with a driver or another tool, which 

is wrapped in cloth in order to protect the cover surface from 

scratches. (See photo 13) 

Partition I/ S 

(4) Remove the catches on the upper and lower right of the partition 

I/S (See photo 14), and then slide the partition I/S toward 

right while being careful not to deform or damage the pipe. 


Deforming or damaging the partition I/S causes refrigerant leakage 

or failure of cooling. 


Do not deform or damage the pipe. (See photo 14) 

Deforming or damaging the pipe causes refrigerant leakage or 

failure of cooling. 

Install the partition I/S so that the arrow points up. 


44 

Photo 11 

Photo 12 

Photo 13 

Photo 14 

Photo 15 

Rivet 

Screw 

Pipe 

Rivet 

Catch 

Screw 

Screw 

Screws 

Catch 

Catch 

Rollers 

Mirror hinge 

Catches 

A 

r 

r 

o 

w 

Catch 

Control panel 

Catch 

Catch 

Catch 

Rivet 

Catch Catch 

Lamp thermistor 

holder 

Screw 

Catch 

Partition I/S cover 

Pipe 

Rollers 

Partition I/S 

Partition I/S 

Move to right


Partition I/ S/ V 

(5) Remove screw (2 screws) at the front of refrigerator. 

Remove screw (1 screw each) and screw (1 screw each) 

at the right and left side of inner wall. 

Then lift up the partition. (See photo 16) 

Cover (IM) 

(6) Remove 2 rivets and 3 catches in order to detach the cover. 


Automatic ice maker assembly 

(7) Remove 1 rivet and pressing 2 catches upward, and pull 

Automatic ice maker assembly to the right side. (See photo 17) 

Cover (upper) 

(8) Remove rivet (1 rivet) to detach the cover (See photo 18) 

Cover (lower) 

(9) Remove rivet (1 rivet) to detach the cover (See photo 19) 

Partition V/ F 

(10) Remove screw (4 screws) on inner wall and screw 

(2 screws) at the front. 

Detach three connectors and lift up the partition. (See photo 18) 

Connector cover (right/ left) 

(11) To detach connector cover, remove rivet (2 rivets each) and 

catches (2 places). (See photo 19) 

(12) Detach the connector. 

Fan grille 

(13) To detach fan grille, remove screw (2 screws) on right and 

left side, rivet (1 rivet) on left side, and detach upper catches 

(3 places). 

Fan grille consists of the following: motor dampers (for ice- 

making compartment/ refrigerator compartment, versa compartment), 

refrigerator fan motor, fan, thermal fuse, vegetable 

compartment heater 1, duct heater, 4 thermistors. 


45 

Photo 16 

Photo 17 

Photo 18 

Photo 19 

Screw 

Tank holder 

Tank holder 

Rivet 

Pipe 

Cover (upper) 

Rivet 

Screws 

Screws 

Screws 

Partition I/ S/ V 

Rivet 

Cover (IM) 

Partition V/F Screws 

Catches 

Catch 

Screw 

Fan grille 

Catches 

(Automatic 

Ice maker 

assembly) 

Automatic 

Ice maker 

assembly 

Catches 

Rivet 

Rivet 

Connector cover (left) Rivet 

Cover (lower) Connector cover (right) 

Screws 

Rivet 

Fan grille 

(Fan grille consists of the following: motor 

dampers (for ice making compartment / refrigerator 

compartment, versa compartment), 

refrigerator fan motor, fan, thermal fuse, vegetable 

compartment heater 1, duct heater, 

4 thermistors).


Evaporator 

(14) Detach catch protruding from drip tray (See Figure 1) to 

remove evaporator. 

Defrost heater, Drip tray 

(15) Detach catch on drip tray (See Figure 2), and slide out defrost 

heater toward you. Remove heater roof and heater cover from 

defrost heater. Remove the aluminum tape, and then remove 

drip tray. 

Defrost thermistor (DEF thermistor) 

(16) Cut the binder and disconnect the connector to remove the 

DEF thermistor and the thermal fuse. (See photo 20) 


Attach defrost heater in place and loosen the lead wires in 

order to prevent water from entering the glass tube. 

Attach the drip tray securely to the lower parts. 

Attach the DEF thermistor in place. (If they are attached out 

of place, thermal characteristics will go wrong.) 

Attach the lead wires to the fixture. 

Entering side 

Entering pipe 

of evaporator 

Black tube 

Black marking 

on the unit 

entering pipe 

* Brazed section 

on the upper side 

30 

EVAP piping 

installation 

Exit side 

Exit pipe of 

evaporator 

Gray tube 

No marking on 

the unit exit pipe 

* Brazed section 

on the lower side 

46 

Figure 1 

Figure 2 

Photo 20 

Catch 

Drip tray 

Catch 


Evaporator 


Evaporator 

Drip tray 

DEF thermistor

Spacer (left), spacer (right) 

OPERATING PROCEDURE FIGURE 

Spacer installation diagram 

Side plate 

Spacer (left) 

Row 1 

Row 2 

Left side of evaporator 

47 

Evaporator 

Engage part 002 to the side plate of part 001, and slide it 

to the direction indicated by the arrows to secure it to the 

piping in the middle column at row 1 and 2. 

Right side of evaporator 

Left side of evaporator 

Row 1 

Row 2 

Row 3 

Notch 

Entering pipe 

Right side of evaporator 

Spacer (right) 

Slide part 003 to the direction indicated by the arrows. 

Set the entering pipe into the notch, and secure it to the 

piping in the middle column at row 2 and 3.

OPERATING PROCEDURE 

5. Parts inside the refrigerator compartment Left rail 

of the slide compartment Parts inside the ice making 

compartment Ice making compartment door 

Tank holder Door switch 

(1) Remove the parts inside the refrigerator compartment. 

(See procedure [2], [3]) 

(2) Remove the left rail of the slide compartment. 

(See procedure [3]) 

(3) Remove the parts inside the ice making compartment. 

(4) Remove the ice making compartment door. 

Tank holder 

(5) Remove a screw on the side of the refrigerator compartment. 

(6) Loosen screw (3 screws) halfway on the side of the ice 

making compartment. Put a screwdriver on the head of each 

screw and top the bottom side of the holder softly to detach it. 


(7) Lift up the tank holder from the refrigerator compartment to 

remove it. 

Note: 

Put the lead wires in place so that they do not get caught in 

water supply channel. 

Put the tank holder in place so that the water does not leak 

from it. 

Door switch 

(8) Insert a minus screwdriver between switch and body to remove 

the door switch. 

6. Operation panel 

How to remove 

(1) Slide the operation panel in the direction of the arrows, unit it 

stops. (See figure 4) 

(2) Pull out the operation panel as shown in a figure 5. 

(See figure 5) 

Note: 

Please pull it out carefully because it is still wired to the body. 

(3) Take out the panel by detaching the connector of lead wires 

from the body. 


Note: 

If the horizontal slide is hard to remove with hands, put plate 

on the right edge of the panel (please put protective object 

such as tapes on the area of contact on the door panel and the 

operation panel), and gently tap it in the sliding direction. 


48 

Photo 21 

Figure 3 

Figure 4 

Figure 5 

Figure 6 

Tank holder 

PHOTOS 

Screw 

Pipe 

Door switch 

Tank holder 

Connector


7. Rotational heater board 

(1) Remove 4 fixing screws to remove the rotational heater board. 


(2) Remove a screw on the wiring cover and disconnect the connector 

in the cover. (See photo 22) 


When raising the rotational heater board, replace the rotational 

heater board as it was. if the refrigerator door is closed with 

the board raised, the rotational heater board may hit against 

the left door of refrigerator and be damaged. 

Though heater preventing dewdrop may make rotational heater 

board hot, it does not affect food inside. 

Refer to right figure when installing the rotational heater board. 


Loosen the fixing screw and adjust a vertical (upper and 

lower) motion. 

After assembling, make sure that the rotational heater board 

fits the guide properly and works properly. 

8. Toe grille 

Detach catch (2 places) and remove toe grille. 


Tilt the toe grille to install, as shown in photo 24. 

Catch (2 places) on the back of toe grille should come to the 

position indicated . (See photo 25) 

Refer to the label on compressor cover (photo 24) for caution 

on assembly. 

49 

Photo 22 

Screw 

Wiring cover 

Rotational 

heater board 

Figure 7 

Photo 23 

Photo 24 

Photo 25 

Screws 

Left door of 

refrigerator 

compartment 

PHOTOS 

Rotational heater 

board 

Castor 

Guide 

3 2mm 

(4)mm 


Carry handle 

Toe grille 

Label 

Catches 

(715) 

Castor 

Back of toe grille


9. Compressor cover Drain pan Machine chamber 

fan Condenser 

Compressor cover 

(1) Remove 8 screws for compressor cover at the back of the 

refrigerator. (See photo 26) 

Drain pan 

(2) Remove screw (1 screw). (See photo 27) 

Caution 

Wash the drain pan with water in case it is dirty. 

(3) Bending up the piping in the drain pan, remove the drain pan. 

Caution 

Do not break or crush the piping. 

Box fan 

(4) Disconnect connector. 

(5) Remove the setscrew (1 setscrew) of fan fixture and the connector, 

and then pull out the machine chamber fan. 

Condenser 

(6) Remove screw (1 screw). (See photo 28) 

Caution 

Arrange wiring as shown in photo 29. 

(7) At installation, follow the procedure above in reverse. 

Replace the piping in the drain pan and adjust it. 

Caution 

The approximate clearance between the drain pan and the piping 

is 10 mm ~ 15 mm, so adjust the drain pan accordingly. 

50 

Photo 26 

Photo 27 

Photo 28 

Photo 29 

Screws 

Screw 

PHOTOS 

Box fan 

Compressor 

Screw 

Condenser 

Screw 

Compressor 

cover 

Screw 

Screw 

(Drain pan) 

Screw 

(Box fan) 

Screws 

Screw 

Condenser 

Drain pan

Figure 8 

Capillary 

tube 

Dryer 

W 

From cabinet pipe to right side 

From dryer to cabinet pipe 

W 

W W W 

From right side to back 

Charge pipe 

(High pressor side) 

Piping connection of three-way valve 

Entrance Exit 

Three-way 

valve 

W W 

W 

W 


W : This mark shows welded point. 

EFI100E 

Compressor 

CAPIL 

1.8* 0.76 

1.6* 0.65 

Charge pipe 

(Low pressor side) Box fan Condenser 

Adjust piping and secure clearance of about 10 to 15 mm around pipes. 

Make sure clearance is secured especially between the following parts. 

Between charge pipe and compressor cover, bottom pan, compressor, 

or discharge pipe. 

Between suction pipe and compressor cover or capillary tube. 

Between capillary tube and three-way valve or lead wires. 

51 

W 

W W 

Attach U washer as the figure shown below. 

W 

W 

From back to left side 

W 

W 

drain pan

Door adjustment 

 

• Common elements 

First, check the installation condition. 

If the adjustment bolt is not in contact with the floor, lower the bolt, and adjust it so that the caster is slightly above the floor. 

When the refrigerator is installed in the corner of the room, the bolt of the refrigerator may sink into the floor and cause the refrigerator 

to tilt. It is recommended to make adjustments by objects like boards beforehand. 

When the refrigerator bolt is sunk into the floor, and it can be confirmed visually, prevent sinking by using objects like boards. 

Note : The refrigerator weighs about 100kg, and is held by four bolts. How far each bolt sinks into the floor depends on 

factors such as floor pillars. Change in balance due to position of stored food (such as large or small amount of food 

stored in the door pockets) may also affect sinking. 

 

Problem 

Solution 

Adjusting doors horizontally 

A 

B 

A>B (More space in outer side) 

Or 

AB (Too much space between the ice 

making compartment and versa compartment 

doors.) 

Misaligned versa compartment door 

Misaligned ice making 

compartment door 

Replace roller set of the right 

and left versa compartment 

doors. 

a To adjust about 0.5mm 

replace with roller set C. 

b To make large adjustment 

replace with roller set D. 

Replace lower roller set of the 

ice making compartment door. 

c To adjust about 0.5mm 

replace with roller set A. 

d To make large adjustment 

replace with roller set B. 

B 

A 

Marking 

right 0.5 [10] 

right 1.0 [12] 

left 0.5 [14] 

left 1.0 [16] 

A

SERVICE MANUAL MR-G57N-T-NZ - B.d.t.

Create successful ePaper yourself

Delete template?

Save as template?