Service Manual -
VMH 9/12/18/24 SU & VMH30/36S D Series
41
44
9.3.
10
High temperature protection of IPM module diagnosis and solution
(P2)
Error Code
P2
Malfunction conditions
If the voltage is not 5V, the LED will display the failure.
Possible
causes
●
PCB faulty
Troubleshooting:
Check if the fastening screws
on the PCB and IPM radiator
are attached properly.
Tighten the screws and
apply silicon grease.
Replace the outdoor control PCB.