SiMT041311E
121
Service Diagnosis
Part 6
Service Diagnosis
1. Service Diagnosis ...............................................................................123
1.1
Indoor Unit............................................................................................123
1.2
Outdoor Unit .........................................................................................123
1.3
Remote Controller ................................................................................123
2. Troubleshooting ..................................................................................125
2.1
Error Codes and Description ................................................................125
2.2
Air conditioner does not run. ................................................................126
2.3
Air conditioner runs but does not cool (heat) the room. .......................128
2.4
When operation starts, safety breaker works. ......................................129
2.5
Air conditioner makes big noise and vibration......................................130
2.6
Air is not humidified enough. ................................................................131
2.7
FLASH STREAMER AIR PURIFYING operation does not run. ...........132
2.8
INTELLIGENT EYE operation does not run. ........................................133
2.9
Indoor Unit PCB Abnormality ...............................................................134
2.10 Freeze-up Protection Control / Heating Peak-cut Control ....................135
2.11 Fan Motor (DC Motor) or Related Abnormality.....................................137
2.12 Thermistor or Related Abnormality (Indoor Unit)..................................139
2.13 Humidity Sensor (for Humidifying) /
Humidifying Thermistor Abnormality ....................................................140
2.14 Humidity Sensor (for Room) Abnormality.............................................141
2.15 Outdoor Unit PCB Abnormality.............................................................142
2.16 OL Activation (Compressor Overload) .................................................143
2.17 Compressor Lock .................................................................................145
2.18 DC Fan Lock ........................................................................................146
2.19 Input Overcurrent Detection .................................................................147
2.20 Four Way Valve Abnormality................................................................148
2.21 Discharge Pipe Temperature Control...................................................150
2.22 High Pressure Control in Cooling .........................................................151
2.23 Compressor System Sensor Abnormality ............................................152
2.24 Power Factor Correction Circuit Abnormality .......................................153
2.25 Position Sensor Abnormality ................................................................154
2.26 Thermistor or Related Abnormality (Outdoor Unit) ...............................156
2.27 Electrical Box Temperature Rise..........................................................158
2.28 Radiation Fin Temperature Rise ..........................................................159
2.29 Output Overcurrent Detection ..............................................................161
2.30 Humidifier Fan Motor System Abnormality / Fan Lock .........................163
2.31 Heater Wire Abnormality ......................................................................164
2.32 Humidifying Thermistor Abnormality /
Humidifying Heater Temperature Abnormality .....................................165
2.33 Refrigerant Shortage ............................................................................167
2.34 Low-voltage Detection or Over-voltage Detection ................................169
2.35 Signal Transmission Error (Between Indoor Unit and Outdoor Unit)....171
2.36 Outdoor Unit PCB Abnormality
or Communication Circuit Abnormality .................................................173
2.37 Signal Transmission Error on Microcomputer for Humidifying .............176
