Check Of Hps - Mitsubishi Electric Mr.Slim MUZ-GC25NA - C1 Service Manual

N Check of HPS
MUZ-GC60NA MUZ-GC71NA
-
C2
1. Disconnect the connector CN681 in the outdoor electronic control P.C. board.
2. Check the resistance of HPS 1 minute after the outdoor unit power supply was turned OFF.
Check the resistance between each terminal.
Reconnect CN681.
Turn ON power supply to the indoor and outdoor unit.
3 minutes later, start EMERGENCY OPERATION.
Is HPS protection displayed immediately after
compressor starts?
0 Ω
No
Normal
Replace HPS.
Infi nity
Replace the outdoor electronic
Yes
control P.C. board.
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