Malfunction Diagnosis Of Startup Failure - Friedrich MWM09Y1J Service & Parts Manual

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Malfunction diagnosis of startup failure

Is wiring of compressor correct.
Is the stop time of compressor enough?
Is compressor damaged?
101
Energize the
unit and start it
Is the stop time
of compressor more
than 3min
Y
N
Startup failure?
Y
Is compressor wire connected correctly?
Y
Replace parts of outdoor
electric box
Remove the error?
N
Replace
compressor
nish
N
Start it 3 min later
Connect it according
N
to wiring diagram
Y