Samsung AM032MNQDCH/AA Service Manual page 3

Section 0
Contents
4-4-35 MCU branch part setup error – Connect an Indoor unit to a branch part not being used ................4-78
4-4-36 MCU branch part setup error – Connect more Indoor units than what is actually set up in MCU .4-79
4-4-37 Outdoor Temperature Sensor Error.......................................................................................................................................4-80
4-4-38 Outdoor Temperature dislocation error .............................................................................................................................4-81
4-4-39 Cond Out Temperature Sensor Error (Open/Short) .....................................................................................................4-82
4-4-40 Outdoor Cond Out sensor breakaway error ....................................................................................................................4-83
4-4-41 Digital Compressor Discharge Temperature Sensor Error (OPEN/SHORT).....................................................4-84
4-4-42 Constant Rate Compressor Discharge Temperature Sensor Error (OPEN/SHORT) ...................................4-85
4-4-43 Compressor Discharge or Top 1/2 Temperature sensor error ..............................................................................4-86
4-4-44
4-4-45
4-4-46 SUMP Temperature Sensor Error (OPEN/SHORT) ..........................................................................................................4-89
4-4-47 High Pressure sensor error (Open/Short)...........................................................................................................................4-90
4-4-48 Low Pressure sensor error (Open/Short) ............................................................................................................................4-91
4-4-49 Suction Temperature sensor error (Open/Short) ..........................................................................................................4-92
4-4-50 Liquid Pipe Temperature sensor error (Open/Short) ..................................................................................................4-93
4-4-51 EVI In Temperature sensor error (Open/Short) ...............................................................................................................4-94
4-4-52 EVI Out Temperature sensor error (Open/Short) ...........................................................................................................4-95
4-4-53 Suction-2 Temperature Sensor Error (OPEN/SHORT) ..................................................................................................4-96
4-4-54
4-4-55
4-4-56 Sump Sensor Error Due to Protection Control ................................................................................................................4-99
4-4-57
4-4-58 3-phase Input Wiring error .......................................................................................................................................................4-101
4-4-59
4-4-60 EVI EEV Open error .........................................................................................................................................................................4-103
4-4-61 Refrigerant Leakage Error ...........................................................................................................................................................4-104
4-4-62
4-4-63 High Pressure Standard Not Met before Air Conditioning (Inability to Re-operate) ............................4-106
4-4-64 CCH Malfunction and Sump Sensor Miswiring Error ................................................................................................4-107
4-4-65 Fan starting error .............................................................................................................................................................................4-108
4-4-66 Fan lock error ......................................................................................................................................................................................4-109
4-4-67 Momentary Blackout error ......................................................................................................................................................4-110
4-4-68 Outdoor Fan Motor overheating ...........................................................................................................................................4-111
4-4-69 Outdoor Unit Fan Motor RPM Error ......................................................................................................................................4-112
4-4-70 Fan IPM Overheat error ...............................................................................................................................................................4-113
4-4-71 Over-Voltage Error of an Outdoor Fan Motor ...............................................................................................................4-114
4-4-72 Counter-Rotation Error of an Outdoor Fan Motor .....................................................................................................4-114
4-4-73
4-4-74 Compressor starting error ..........................................................................................................................................................4-116
4-4-75 Inverter Overcurrent error ..........................................................................................................................................................4-117
4-4-76 Overvoltage / Low voltage error ............................................................................................................................................4-118
4-4-77 DC Link voltage sensor error ...................................................................................................................................................4-119
4-4-78 Liquid Compression Prevention Control ...........................................................................................................................4-120
4-4-79 Fan Motor Overcurrent error ....................................................................................................................................................4-121
4-4-80 Input / Output Current sensor error ...................................................................................................................................4-122
4-4-81 Outdoor Fan PCB Overvoltage / Low voltage error ..................................................................................................4-123
4-4-82 Hall IC(Fan) error ...............................................................................................................................................................................4-124
4-4-83 Inverter Overheat error ...............................................................................................................................................................4-125
4-4-84 Model mismatching of Indoor unit. .....................................................................................................................................4-126
4-4-85 Breakdown of an EEV(1
4-4-86 Breakdown of an EEV closure ..................................................................................................................................................4-128
4-4-87 Electronic expansion valve closing malfunction (2
4-4-88 Electronic expansion valve opening malfunction (2
2
: Dislocation error of Compressor SUMP Temperature (oil temperature) Sensor ................4-87
: Suction Temperature sensor breakaway error ....................................................................................4-88
: Comp. Down due to High Pressure Protection Control ................................................................4-97
: Comp. Down due to Low Pressure Protection Control .................................................................4-98
: Comp. Down due to Compressor Discharge Temperature sensor ......................................4-100
: Comp. Down by Compression Ratio Control ....................................................................................4-102
: Prohibition of the operation of Compressor due to Ooutdoor Temperature 4-105
,
: Compressor Excess Current Error .................................................................................................................4-115
st
) ..........................................................................................................................................................4-127
nd
stage) ..........................................................................4-129
nd
stage) ........................................................................4-130
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