Check code
4100
(UF)
Compressor current interruption (Locked compressor)
●Diagnosis of defectives
Make sure to turn the power OFF before connecting/disconnecting any connectors, or replacing boards.
Diagnosis
Remedy
Chart 2 of 2
Yes
Yes
No
No
Are they connected properly?
Is the compressor faulty grounded?
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).
Check whether the compressor is faulty
grounded or not.
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OCH668B