Carrier 38QHC012ESWP - Compressor Top Temperature Protection (P2)

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