Gree GPC07AH-K3NNC3D Service Manual page 53

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