Gree GWH12KF-D3DNA6A

Troubleshooting
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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
connected correctly?
Connect it according
to line chart
Replace parts if outdoor
electric box
Remove the error?
Replace
compressor
finish
(4) Diagnosis of losing synchronism for compressor
Main detection points:
z Is pressure of the system too high?
z Is voltage too low?
Malfunction diagnosis process:
COMP(UVW)
Finish
Finish
Losing synchronism
upon startup of
the unit
Losing synchronism
during running
Is the stop time
of compressor
more than 3min？
Is outdoor fan normal?
Is fan well connected?
Is wire of compressor(U,V,W)
well connected?
Is outdoor
fan blocked by stuff?
Remove staff
Reliable connected?
Replace parts of
outdoor electric box
Replace parts of
outdoor electric box
Replace parts of
outdoor electric box
Adjust
connec
ting wire
Remove error?
Remove error?
Remove error?
Replace
compressor
Replace
compressor
Replace
outdoor fan
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