Mitsubishi Heavy Industries SRK63ZR-WF Technical Manual page 67

Current cut
Is there any short-circuit?
＊
Current safe stop
Inspect outdoor air temperature sensor
Compressor lock, Compressor wiring short-circuit, Compressor output is open phase,
Outdoor unit PCB is faulty, Service valve is closed, EEV is faulty, Compressor faulty.
Defective outdoor unit PCB
Defective outdoor unit PCB
Defective outdoor unit PCB
Model63
1.450Ω (U-V), 1.453Ω (V-W), 1.452Ω (W-U) or more at 20ºC
Model71, 80
1.154Ω (U-V), 1.130Ω (V-W), 1.174Ω (W-U) or more at 20ºC
Defective outdoor unit PCB
.
＊
66
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'09•SRK-DB-087D
'22 • SRK-T-362
74.
Overload operation, compressor
lock, overcharge