54
9.2.8 P0: IPM Malfunction or IGBT Over-current Protection
Condition: The voltage signal that the IPM sends to the compressor drive chip is
abnormal.
Possible Causes:
- Wiring mistake
- IPM malfunction
- Outdoor fan assembly faulty
- Compressor malfunction
- Outdoor PCB faulty
For 9K to 24K units
Check the wiring between main PCB
and compressor
Correct the connection or replace
the wires and connectors.
Yes
No
Check the IPM
No
Yes
Replace the IPM board or replace
the main PCB
Check the outdoor fan and the
outdoor unit ventilation
No
Please refer to the solution of
【
Fan
Speed Has Been Out Of Control
】
malfunction
Yes
Check the compressor resistance
values
No
Replace the compressor.
Yes
Replace the outdoor main PCB
Refer to Section 9.3.1.
Please refer to the section 9.3.4.
Replace motor if it fails.
Check the IPM. Refer to Section 9.3.3.
Summary of Contents for 12H47YIMI
Page 10: ...10 1080 mm 226 mm 335 mm 30H48ZIMI 49 57 1259 mm 11 1 282 mm 14 25 362 mm 36H46ZIMI...
Page 19: ...19 Model Voltage V Capacity BTU Type 12H47ZOMI 230 12 000 HEAT PUMP...
Page 56: ...56 P W N U...
Page 57: ...57 N V N W...
Page 82: ...82 7 Then lift the PCB assembly off the unit NOTE All wires are still connected...
