SiENBE34-703
Troubleshooting 103
Part 7
Troubleshooting
1. Symptom-based Troubleshooting .......................................................105
2. Troubleshooting by remote control......................................................108
2.1 The INSPECTION / TEST Button.........................................................108
2.2 Self-diagnosis by Wired remote control................................................109
2.3 Self-diagnosis by infrared remote control.............................................110
2.4 Operation of the remote control’s Inspection /
Test Operation Button ..........................................................................112
2.5 remote control Service Mode ...............................................................113
2.6 remote control Self-Diagnosis Function ...............................................115
3. Troubleshooting by Indication on the remote control ..........................122
3.1 “A0” Indoor Unit: Error of External Protection Device ...........................122
3.2 “A1” Indoor Unit: PC Board Defect.........................................................123
3.3 “A3” Indoor Unit: Malfunction of Drain Level Control System (S1L) ......124
3.4 “A6” Indoor Unit: Fan Motor (M1F) Lock, Overload...............................126
3.5 “A7” Indoor Unit: Malfunction of Swing Flap Motor (M1S) .....................127
3.6 “A9” Indoor Unit: Malfunction of Moving Part of
Electronic Expansion Valve (Y1E)........................................................129
3.7 “AF” Indoor Unit: Drain Level above Limit..............................................131
3.8 “AJ” Indoor Unit: Malfunction of Capacity Determination Device ..........132
3.9 “C4” Indoor Unit: Malfunction of Thermistor (R2T) for
Heat Exchanger....................................................................................133
3.10 “C5” Indoor Unit: Malfunction of Thermistor (R3T) for Gas Pipes..........134
3.11 “C9” Indoor Unit: Malfunction of Thermistor (R1T) for Suction Air.........135
3.12 “CA” Indoor Unit: Malfunction of Thermistor for Discharge Air...............136
3.13 “CJ” Indoor Unit: Malfunction of Thermostat Sensor
in remote control...................................................................................137
3.14 “E1” Outdoor Unit: PC Board Defect ......................................................138
3.15 “E3” Outdoor Unit: Actuation of High Pressure Switch ..........................139
3.16 “E4” Outdoor Unit: Actuation of Low Pressure Sensor..........................141
3.17 “E5” Inverter Compressor Motor Lock ...................................................143
3.18 “E7” Malfunction of Outdoor Unit Fan Motor..........................................144
3.19 “E9” Outdoor Unit: Malfunction of Moving Part of
Electronic Expansion Valve (Y1E, Y3E)...............................................145
3.20 “F3” Outdoor Unit: Abnormal Discharge Pipe Temperature ..................147
3.21 “F6” Outdoor Unit: Refrigerant Overcharged.........................................148
3.22 “H9” Outdoor Unit: Malfunction of Thermistor (R1T) for
Outdoor Air ...........................................................................................149
3.23 “J3” Outdoor Unit: Malfunction of Discharge Pipe Thermistor
(R2T) ....................................................................................................150
3.24 “J5” Outdoor Unit: Malfunction of Thermistor (R3T, R5T) for
Suction Pipe 1, 2 ..................................................................................151
3.25 “J6” Outdoor Unit: Malfunction of Thermistor (R6T) for
Outdoor Unit Heat Exchanger ..............................................................152
3.26 “J7” Outdoor Unit: Malfunction of Thermistor (R7T) for
Outdoor Unit Liquid Pipe ......................................................................153
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