Fisher FSAIF-Pro-95AE2 Service Manual page 48

9.2.9 High temperature protection of IPM or compress top diagnosis and solution (P2)
Error Code
Malfunction decision
conditions
Supposed causes
Trouble shooting:
P2
If the sampling voltage is not 5V, the LED will display the failure.
Installation mistake
●
Power supply problems.
●
System leakage or block
●
PCB faulty
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