Specifications

SiBE28-805
Troubleshooting 119
Part 6
Troubleshooting
1. Symptom-based Troubleshooting .......................................................121
2. Troubleshooting by Remote Controller ...............................................124
2.1 The INSPECTION / TEST Button.........................................................124
2.2 Self-diagnosis by Wired Remote Controller .........................................125
2.3 Self-diagnosis by Wireless Remote Controller .....................................126
2.4 Remote Controller Service Mode .........................................................129
2.5 Remote Controller Self-Diagnosis Function .........................................131
3. Troubleshooting by Indication on the Remote Controller ....................138
3.1 “A0” Indoor Unit: Error of External Protection Device............................138
3.2 “A1” Indoor Unit: PC Board Defect........................................................139
3.3 “A3” Indoor Unit: Malfunction of Drain Level Control System (S1L)......140
3.4 “A6” Indoor Unit: Fan Motor (M1F) Lock, Overload...............................142
3.5 “A9” Indoor Unit: Malfunction of Moving Part of
Electronic Expansion Valve (Y1E)........................................................143
3.6 “AF” Indoor Unit: Drain Level above Limit .............................................145
3.7 “AJ” Indoor Unit: Malfunction of Capacity Determination Device ..........146
3.8 “C4” Indoor Unit: Malfunction of Thermistor (R2T) for
Heat Exchanger....................................................................................147
3.9 “C5” Indoor Unit: Malfunction of Thermistor (R3T) for Gas Pipes .........148
3.10 “C9” Indoor Unit: Malfunction of Thermistor (R1T) for Suction Air.........149
3.11 “CC” Indoor Unit: Malfunction of Humidity Sensor System ....................150
3.12 “CJ” Indoor Unit: Malfunction of Thermostat Sensor
in Remote Controller ............................................................................151
3.13 “E1” Outdoor Unit: PC Board Defect .....................................................152
3.14 “E3” Outdoor Unit: Actuation of High Pressure Switch..........................153
3.15 “E4” Outdoor Unit: Actuation of Low Pressure Sensor..........................155
3.16 “E5” Outdoor Unit: Inverter Compressor Motor Lock.............................157
3.17 “E7” Outdoor Unit: Malfunction of Outdoor Unit Fan Motor...................159
3.18 “E9” Outdoor Unit: Malfunction of Moving Part of
Electronic Expansion Valve (Y1E, Y2E)...............................................162
3.19 “F3” Outdoor Unit: Abnormal Discharge Pipe Temperature..................164
3.20 “F6” Outdoor Unit: Refrigerant Overcharged.........................................165
3.21 “H7” Outdoor Unit: Abnormal Outdoor Fan Motor Signal ......................166
3.22 “H9” Outdoor Unit: Malfunction of Thermistor (R1T) for Outdoor Air.....167
3.23 “J3” Outdoor Unit: Malfunction of Discharge Pipe Thermistor (R3T) ....168
3.24 “J5” Outdoor Unit: Malfunction of Thermistor (R2T, R7T) for
Suction Pipe .........................................................................................169
3.25 “J6” Outdoor Unit: Malfunction of Thermistor (R4T) for
Outdoor Unit Heat Exchanger ..............................................................170
3.26 “J7” Outdoor Unit: Malfunction of Liquid Pipe Thermistor (R6T)...........171
3.27 “J9” Outdoor Unit: Malfunction of Subcooling Heat Exchanger
Gas Pipe Thermistor (R5T) ..................................................................172
3.28 “JA” Outdoor Unit: Malfunction of High Pressure Sensor......................173
3.29 “JC” Outdoor Unit: Malfunction of Low Pressure Sensor ......................174