Mitsubishi Electric MXZ-SM72TAM-U1 Service Manual page 51

4100 (UF): Compressor current interruption (Locked compressor)
Diagnosis of failure
Continued from the previous page.
Are they connected properly?
Check whether the compressor is faultily
grounded or not.
Is the compressor faultily grounded?
OCH800A_51
No
Yes
No
Yes
Connect the compressor wiring (U, V and W
phase) properly, then turn the power back ON.
Replace the outdoor power circuit board
(Defective outdoor power circuit board).
Replace the compressor (Defective compressor).
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