Gree GWH07QA-K3NNA1A, Service Manual

Page: 48 / 100

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Troubleshooting
for E8 malfunction
Clean the outdoor and indoor heat exchangers
and remove blockage of air inlet/outlet.
Malfunction is
eliminated.
Malfunction is
eliminated.
Outdoor and indoor heat
exchangers are too dirty or the air
inlet/outlet is blocked.
Check motor and re-install the motor
to make it run normally.
Fan motor is not working.
Abnormal fan speed; fan speed is too low
or the fan doesn't run.
Malfunction is
eliminated.
Malfunction is
eliminated.
Malfunction is
eliminated.
End
Compressor doesn't work
normally. Strange noise or leakage occurs.
Make compressor run normally.
Remove blockage in the system.
System is blocked inside
(dirt block, ice block, oil block, Y-valve not
fully open).
Temperature sensor of main board
Replace the temperature sensor.
Casing is too hot.
can't detect correctly.
Replace a main
board with the
same model.
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