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(4) Start-up failure (following AP1 for outdoor unit control board)
Mainly detect:
Whether the compressor wiring is connected correct
ly
?
Is compressor broken?
Is time for compressor stopping enough
time
?
Fault diagnosis process:
Y
N
Y
N
N
Y
Y
N
Power on the unit
Is stop time of the compressor
longer than 3 minutes?
Restart it after
3 minutes
Does startup fail?
Are the wires for the compressor connected
correctly? Is connection sequence right?
Connect the wires as
per the connection
diagram
Replace the control panel AP1
If the fault is eliminated?
Replace the
compressor
End
Summary of Contents for DHP30NWB21SDCP30NWB21SDHP36NWB21SDCP36NWB21S
Page 48: ...41 Compressor starts normally...
Page 88: ...81...