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Y
N
Y
N
Y
Y
N
N
Energize the
unit and start it
Is the stop time
of compressor more
than 3min
Start it 3 min later
Startup failure?
Is compressor wire COMP(UVW)
connected correctly?
Connect it according
to line chart
Replace parts if outdoor
electric box
Remove the error?
Replace
compressor
finish
(3)Malfunction diagnosis of startup failure
Main detection point:
● Is wiring of compressor correct.
● Is the stop time of compressor enough?
● Is compressor damaged?
Malfunction diagnosis process:
