Gree GPH12AF-K3NNA7A

38
Maintenance
Service Manual
Draw-water motor can't operate
normally
The refrigerant is leaking
and cause overheating protection to
compressor
Replace the draw-water motor
Water outlet hasn't been blocked well
by rubber cork
Block the water outlet well
Check the leaking status of refrigerant
and charge refrigerant
Clean the heat exchangers and remove
blockage of air inlet/outlet.
Heat exchangers are
too dirty or the air inlet/outlet
is blocked.
Check motor and re-install the moto
to make it run normally
Fan motor is not working
Abnormal fan speed; fan speed is too low
or the fan doesn't run.
End
Remove blockage in the system
System is blocked inside
(dirt block, ice block, oil block, Y-valve no
fully open).
Compressor doesn't work
normally. Strange noise or leakage occurs.
Make compressor run normally.
Casing is too hot.
Replace a main
board with the
same model.
Malfunction is
eliminated.
Malfunction is
eliminated.
Malfunction is
eliminated.
Malfunction is
eliminated.
Malfunction is
eliminated.
Malfunction is
eliminated.
Malfunction is
eliminated.
Troubleshooting
for H3 malfunction
Yes
No
No
No
No
No
No
No
No
No
No
No
No
No
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
(5) Troubleshooting for overload malfunction of compressor (H3)