Service Manual - Quietside

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4-5-11 O.C.(Over Current) errorMEMO1. Checklist :1) Is the refrigerant charged properly?2) Does the compressor rotate normally?(Reverse rotation, Locking etc.)3) Is connection of compressor wire normal?4) Is compressor motor normal?(Insulation, Coil resistance etc.)5) Does a temporary cycle overload condition happened?2. Troubleshooting procedureIs the installation of outdoor unit good?NoReinstall and remove the obstructionYesIs the installation of indoor unit good?NoReinstall and remove the obstructionYesAre the service valves full opened?NoOpen valve screw to the end.YesDoes the compressor wire connected to thecompressor normally?NoCorrect the compressor wire connectionYesIs insuration resistance between eachcompressor terminal and body normal?NoExchange the compressorYesDoes the compressor rotate normally?NoExchange the compressorYesDid AC power voltage interruption happenduring the compressor in operation?YesCheck AC power sourceNoExchange INVERTER PCB4-28 Samsung ElectronicsCH£ª£ª£ªCAV_USA_30520_SM_N.indd 28 2009-2-18 17:33:50
4-5-12 Communication errorMEMO1. Checklist :1) Is the communication cable between the indoor unit and outdoor unit connected correctly?2) Isn’t the power cable and communication cable wiring error?2. Troubleshooting procedureRestart after power off.Is the communication erroroccurred again?NoTerminate the service.YesIsn't the power cable andcommunication cable wiring error?NoCorrect the wrong wiring.YesIs the connection ofcommunication cable normal?NoCorrect the connection ofcommunication cable.YesExchange the outdoor unit PCB.Samsung Electronics 4-29CH£ª£ª£ªCAV_USA_30520_SM_N.indd 29 2009-2-18 17:33:50
Page 2 and 3:
Contents11. Precautions ...........
Page 4 and 5:
1-3 During operation Do not repair
Page 6 and 7:
2-2 Product SpecificationsItemTypeS
Page 9 and 10:
2-3 The Comparative Specifications
Page 11 and 12:
Accessories(cont.)Item Descriptions
Page 13 and 14:
Accessories(cont.)Wired Remote Cont
Page 15 and 16: Transmitter AccessoriesItem Descrip
Page 20 and 21: No Parts Procedure Remark8) To unco
Page 22 and 23: No Parts Procedure Remark4) Disasse
Page 24 and 25: No Parts Procedure Remark4 Drain Pu
Page 26 and 27: No Parts Procedure Remark7 Panel Fr
Page 28 and 29: No Parts Procedure Remark3) Loosen
Page 30 and 31: No Parts Procedure Remark2 Fan&Moto
Page 32 and 33: No Parts Procedure Remark5 Compress
Page 34 and 35: No Parts Procedure Remark5) Loosen
Page 36 and 37: No Parts Procedure Remark3 Ass’y
Page 38 and 39: MEMO3-22 Samsung ElectronicsCH£ª
Page 40 and 41: 4-1-1 Wired Remocon Error Display(C
Page 42 and 43: 4-2 Outdoor LED Error Display and C
Page 44 and 45: Operation method Applicable button
Page 46 and 47: Step 10Method)Operation method Appl
Page 52 and 53: Operation method Applicable button
Page 54 and 55: 4-4 Items to be checked first1. The
Page 56 and 57: 4-5-2 The Outdoor unit Power Supply
Page 58 and 59: 4-5-4 Total current trip errorMEMO1
Page 60 and 61: In case of heating at the cooling m
Page 62 and 63: 4-5-7 Discharge temperature sensor
Page 64 and 65: 4-5-9 Fan errorMEMO1. Checklist :1)
Page 68 and 69: 4-5-13 Compressor start error1. Che
Page 70 and 71: 4-5-15 DC Link Over voltage/ Low vo
Page 72 and 73: 4-6 PCB Inspection Method4-6-1 Pre-
Page 74 and 75: 4-7 Main Part Inspection MethodPart
Page 76 and 77: Parts List(CH070CAV1)No. CODE NO. D
Page 78 and 79: 5-2 Panel P4SMA19132524262018272232
Page 80 and 81: 5-3 Outdoor Unit UH105/140CAV121267
Page 82 and 83: UH070CAV15-8 Samsung ElectronicsCH
Page 84 and 85: 5-4 Assy control out UH105/140CAV5-
Page 86 and 87: UH070CAV1234222315912-1208521125-12
Page 88 and 89: MEMO5-14 Samsung ElectronicsCH£ª
Page 90 and 91: 6-1-2 OUTDOOR MAIN PCB(UH105/140CAV
Page 92 and 93: 6-1-4 OUTDOOR EMI PCB(UH105/140CAV)
Page 94 and 95: 6-1-5 OUTDOOR INVERTER PCB(UH105/14
Page 96 and 97: 6-2. PCB Parts List INDOOR MAIN PCB
Page 98 and 99: INDOOR MAIN PCB(CH070CAV1/CH105CAV/
Page 100 and 101: OUTDOOR MAIN PCB(UH140/105CAV:DB93-
Page 102 and 103: OUTDOOR MAIN PCB(UH140/105CAV:DB93-
Page 104 and 105: INDOOR MAIN PCB(UH070CAV1:DB93-0583
Page 106 and 107: INDOOR MAIN PCB(UH070CAV1:DB93-0583
Page 108 and 109: OUTDOOR ASSY PCB SUB-EMI (UH105/140
Page 110 and 111: OUTDOOR ASSY PCB -INVERTER (UH105/1
Page 112 and 113: OUTDOOR ASSY PCB -INVERTER (UH105/1
Page 114 and 115: OUTDOOR ASSY PCB-INVERTER (UH070CAV
Page 116 and 117:
OUTDOOR ASSY PCB-INVERTER (UH070CAV
Page 118 and 119:
7. Wiring DiagramMODEL : UH070CAV1/
Page 120 and 121:
8-2 Outdoor Unit MAIN PCB(UH105/140
Page 122 and 123:
INVERTER PCB(UH105/140CAV)This Docu
Page 124 and 125:
EMI PCB(UH070CAV1)This Document can
Page 126 and 127:
9-2 Index of Model Name Project mod
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Service Manual - Quietside

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