Ipm Malfunction Or Igbt Over-Strong Current Protection (Pc00) - Midea DLFSHB Manual

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DIAGNOSIS AND SOLUTION (CONT)

IPM malfunction or IGBT over-strong current protection (PC00)

Description: When the IPM sends a voltage signal to the compressor drive chip is abnormal, "PO" appears on the LED and the
air conditioner turns off.
Recommended parts to prepare:
• Wiring mistake
• IPM malfunction
• Faulty outdoor fan assembly
• Compressor malfunction
• Faulty outdoor PCB
Troubleshooting and Repair:
Check the wiring between
the PCB and compressor.
Check the outdoor fan and the
outdoor unit ventilation.
acceptable parameters ?
Replace the outdoor PCB.
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
Does an error exist ?
NO
Check the IPM.
Is it in working order ?
YES
Is it in working order ?
YES
Check the compressor
resistance values.
YES
Ensure proper connections or
YES
replace the wires and connectors.
Replace the IPM board or
NO
replace the outdoor PCB.
Refer to the Fan Speed is
NO
Out of Control (EH03) solution.
NO Replace the compressor.
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