5.12 P2(High temperature protection of IPM module diagnosis and solution)
Description: If the temperature of IPM module is higher than setting value, the LED displays this failure code.
Recommended parts to prepare:
• Faulty PCB
• Connection problems
Troubleshooting and repair:
Page 84
Check the fastening screws on the
PCB and IPM radiator.
Are they
fixed tightly?
NO
Tighten the screws and apply
silicon grease.
Replace the outdoor
YES
control PCB.