KM1301SAH-E Service Manual - Hoshizaki

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B. Maintenance The maintenance schedule below is a guideline. More frequent maintenance may be required depending on water quality, the icemaker's environment, and local sanitation regulations. WARNING 1. Except as specified below, only qualified service technicians should attempt to service this icemaker. 2. Move the power switch to the "OFF" position and disconnect power before servicing. 1. Stainless Steel Exterior - Performed by Qualified Service Technician or Owner/ Manager To prevent corrosion, wipe the exterior occasionally with a clean, soft cloth. Use a damp cloth containing a neutral cleaner to wipe off oil or dirt buildup. 2. Storage Bin and Scoop - Performed by Qualified Service Technician or Owner/ Manager Clean the scoop and the storage bin liner using a neutral cleaner. Rinse thoroughly after cleaning. 3. Air Filters (air-cooled model) - Performed by Qualified Service Technician or Owner/ Manager Plastic mesh air filters remove dirt and dust from the air and keep the condenser from getting clogged. As the filters get clogged, the icemaker’s performance will be reduced. Check the filters at least twice a month. When clogged, use warm water and a neutral cleaner to wash the filters. 4. Condenser (air-cooled and remote air-cooled models) - Performed by Qualified Service Technician The condenser should be checked and cleaned once a year. Instructions for the service technician can be found in the Installation Manual supplied with this icemaker. C. Preparing the Icemaker for Long Storage Performed by Qualified Service Technician CAUTION 1. When storing the icemaker for an extended time or in sub-freezing temperatures, follow the instructions below to prevent damage. 2. To prevent damage to the water pump seal, do not operate the icemaker with the control switch in the "WASH" position when the water tank is empty. When the icemaker is not used for two or three days under normal conditions, it is sufficient to move the control switch to the "OFF" position. When storing the icemaker for an extended time or in sub-freezing temperatures, follow the instructions below. 1. Remove the water from the icemaker water supply line: 1) Turn off the power supply, then remove the front panel. 2) Move the control switch on the control box to the "OFF" position. 58
3) Close the icemaker water supply line shut-off valve, then open the icemaker water supply line drain valve. 4) Allow the line to drain by gravity. 5) Attach a compressed air or carbon dioxide supply to the icemaker water supply line drain valve. 6) Move the control switch to the "ICE" position. 7) Replace the front panel in its correct position, then turn on the power supply. 8) Blow the icemaker water supply line out using the compressed air or carbon dioxide supply. 9) Close the icemaker water supply line drain valve. 2. Drain the water tank: 1) Turn off the power supply, then remove the front panel. Move the control switch to the "OFF" position. 2) Remove the insulation panel. Remove the drain plug located on the lower front part of the ice chute. See Fig. 5. Allow the water tank to drain. 3) Replace the drain plug and the insulation panel in their correct positions. Be careful not to cross thread the drain plug. 4) Remove all ice from the storage bin. Clean the storage bin using a neutral cleaner. Rinse thoroughly after cleaning. 5) Replace the front panel in its correct position. 3. On water-cooled model, remove the water from the water-cooled condenser: 1) Make sure the power supply is off, then remove the front panel and right side panel. 2) Close the condenser water supply line shut-off valve. If connected to a closed loop system, also close the condenser return line shut-off valve. 3) Open the condenser water supply line drain valve. If connected to a closed loop system, also open the condenser return line drain valve. 4) Attach a compressed air or carbon dioxide supply to the condenser water supply line drain valve. 5) Open the water regulating valve by using a screwdriver to pry up on the spring retainer underneath the spring. While holding the valve open, blow out the condenser using the compressed air or carbon dioxide supply until water stops coming out. 6) Close the drain valve(s). 59
Page 1 and 2:
Hoshizaki America, Inc. Stackable C
Page 3 and 4:
IMPORTANT This manual should be rea
Page 5 and 6:
Important Safety Information Throug
Page 7 and 8: 2. KM-1301SWH-E (water-cooled) AC S
Page 9 and 10: B. Condenser Unit 1. URC-14FE Units
Page 11 and 12: II. General Information A. Construc
Page 13 and 14: 3. KM-1301SRH-E (remote air-cooled)
Page 15 and 16: c) Freeze Cycle LED 1 is on. Comp a
Page 17 and 18: 2. Sequence Flow Chart "G" Control
Page 19 and 20: 1. Control Board Layout "G" Control
Page 21 and 22: 2. Controls and Adjustments CAUTION
Page 23 and 24: e) Harvest Pump Timer (S4 dip switc
Page 25 and 26: III. Technical Information A. Water
Page 27 and 28: 3. KM-1301SRH-E (remote air-cooled)
Page 29 and 30: 2. Auxiliary Code U-1 and Later a)
Page 31 and 32: c) KM-1301SRH-E (remote air-cooled)
Page 33 and 34: 2. KM-1301SWH-E (water-cooled) APPR
Page 35 and 36: IV. Service Diagnosis WARNING 1. Th
Page 37 and 38: an inoperative Comp, or an inoperat
Page 39 and 40: B. Control Board Check Before repla
Page 41 and 42: 7) Press the actuator paddle, check
Page 43 and 44: D. Float Switch Check and Cleaning
Page 45 and 46: E. Thermistor Check To check thermi
Page 47 and 48: No Ice Production - Possible Cause
Page 49 and 50: Freeze Up - Possible Cause 1. Evapo
Page 51 and 52: V. Replacement of Components WARNIN
Page 53 and 54: 4) Close the low-side valve and hig
Page 55 and 56: VI. Cleaning and Maintenance This i
Page 57: 15) Move the control switch to the
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KM1301SAH-E Service Manual - Hoshizaki

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