P0 error code - IPM malfunction or IGBT over-strong current protection

Modified on Thu, 3 Nov, 2022 at 9:46 AM

A P0 error code is caused when an abnormal voltage signal is sent to the compressor. This can be caused by a faulty outdoor board, outdoor fan or a compressor malfunction.


For a more detailed diagnostics, you can review the attached PDF - P0_P4 error code on how to  pinpoint the issue. Please refer to the other attachments for the specific tests mentioned in the error code procedure.

Board Test PDF

P0/P4 Error Code

E3/F5 Error Code PDF

IMP Continuity Check PDF

Compressor Checking PDF

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