Daikin FTXN-LV, Руководство по устранению неисправностей, Страница: 45 / 54

TS13-01 Troubleshooting manual 45
L5
Description IPM error/IGBT error
Supposed Cause - Over current due to defective power transistor
- Over current due to wrong internal wiring
- Over current due to abnormal supply voltage
- Over current due to defective PCB
- Error detection due to defective PCB
- Over- current due to closed stop valve
- Over current due to compressor failure
- Over current due to poor installation condition
- Connection between main board and IPM board is not properly connect
Troubleshooting
U0
Description Insufficient gas
Supposed Cause - Refrigerant shortage
- Refrigerant leakage
- Stop valve closed
- EXV defective
- Discharge pipe thermistor defect
- Indoor and outdoor unit coil thermistor not in actual location or defect