38MHRC: Service Manual
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
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DIAGNOSIS AND SOLUTION (CONT)
IPM malfunction or IGBT over-strong current protection diagnosis and solution (P0)
Description: When the voltage signal, that the IPM sends to the compressor drive chip is abnormal, the display LED displays “P0”and the air
conditioner turns off.
Possible causes:
• Wiring mistake
• IPM malfunction
• Faulty outdoor fan assembly
• Compressor malfunction
• Faulty outdoor PCB
Troubleshooting
A210603
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