SiUS39-602
Troubleshooting 111
Part 6
Troubleshooting
1. Troubleshooting by Remote Controller ...............................................114
1.1 The INSPECTION / TEST Button ........................................................114
1.2 Self-diagnosis by Wired Remote Controller .........................................115
1.3 Self-diagnosis by Wireless Remote Controller..................................... 116
1.4 Operation of the Remote Controller’s Inspection /
Test Operation Button .......................................................................... 119
1.5 Remote Controller Service Mode .........................................................120
1.6 Remote Controller Self-Diagnosis Function.........................................122
2. Troubleshooting by Indication on the Remote Controller....................127
2.1 “A0” Indoor Unit: Error of External Protection Device ........................... 127
2.2 “A1” Indoor Unit: PC Board Defect ........................................................ 128
2.3 “A3” Indoor Unit: Malfunction of Drain Level Control System (S1L)......129
2.4 “A6” Indoor Unit: Fan Motor (M1F) Lock, Overload .............................. 131
2.5 “A7” Indoor Unit: Malfunction of Swing Flap Motor (MA).......................132
2.6 “A9” Indoor Unit: Malfunction of Moving Part of
Electronic Expansion Valve (20E)........................................................134
2.7 “AF” Indoor Unit: Drain Level above Limit ............................................. 136
2.8 “AJ” Indoor Unit: Malfunction of Capacity Determination Device..........137
2.9 “C4” Indoor Unit: Malfunction of Thermistor (R2T) for
Heat Exchanger ................................................................................... 138
2.10 “C5” Indoor Unit: Malfunction of Thermistor (R31T, R32T) for
Gas Pipes ............................................................................................ 139
2.11 “C9” Indoor Unit: Malfunction of Thermistor (R1T) for Suction Air ........140
2.12 “CJ” Indoor Unit: Malfunction of Thermostat Sensor in
Remote Controller................................................................................ 141
2.13 “E1” Outdoor Unit: PC Board Defect...................................................... 142
2.14 “E3” Outdoor Unit: Actuation of High Pressure Switch.......................... 143
2.15 “E4” Outdoor Unit: Actuation of Low Pressure Sensor.......................... 144
2.16 “E5” Compressor Motor Lock (INV Compressor) .................................. 145
2.17 “E6” Compressor Motor Overcurrent/Lock (STD Compressor)............. 146
2.18 “E7” Malfunction of Outdoor Unit Fan Motor.......................................... 147
2.19 “E9” Outdoor Unit: Malfunction of Moving Part of
Electronic Expansion Valve (Y1E, Y2E, Y3E)......................................149
2.20 “F3” Outdoor Unit: Abnormal Discharge Pipe Temperature.................. 151
2.21 “F6” Refrigerant Overcharged...............................................................152
2.22 “H7” Abnormal Outdoor Fan Motor Signal............................................. 153
2.23 “H9” Outdoor Unit: Malfunction of Thermistor for Outdoor Air
(R1T).................................................................................................... 154
2.24 “J2” Current Sensor Malfunction ..........................................................155
2.25 “J3” Outdoor Unit: Malfunction of Discharge Pipe Thermistor
(R31~32T)............................................................................................ 156
2.26 “J4” Malfunction of Heat Exchanger Gas Pipe Thermistor
(R81, 82T) ............................................................................................ 157
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