Gree GPC07AH-K3NNC3D Service Manual page 54

(6) Overload malfunction E8
Troubleshooting
for E8 malfunction
Whether the environment
is formidable．
No
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
Temperature sensor of main board
can't detect correctly.
No
Replace a main
board with the
same model.
End
52
Operate the unit after ambient tempeature and
Yes humidity is decreased or move the unit to the
place with low abient temprature and humidity.
No
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
Replace the temperature sensor.
Yes
No
Malfunction is
eliminated.
and remove
Malfunction is
eliminated.
Malfunction is
eliminated.
Malfunction is
eliminated.
Malfunction is
eliminated.
Malfunction is
eliminated.
Service Manual
Yes
Yes
Yes
Yes
Yes
Yes
Maintenance