Gree GRH120DB-K6NA1A User Manual

34
Installation and Maintenance
5. Overload malfunction H3
Make compressor run normally.
Remove blockage in the system.
Checkthe leakingstatusofrefrigerant
and charge refrigerant.
Troubleshooting
forH3malfunction
Yes
Heat exchangers are
toodirty or theair inlet/outlet
is blocked.
Malfunction is
Yes
eliminated.
No
No
Yes
Fan motor doesn't work at
a normal fan speed; fan speed is
too low or the fan doesn
'
t run
Malfunction is
Yes
eliminated.
No
No
Yes
Casing is toohot.
Malfunction is
Yes
eliminated.
Compressor doesn'twork
normally.Strange noiseorleakage occurs.
No
No
Yes
fully open).
Malfunction is
eliminated.
Yes
System is blocked inside
(dirt block, ice block, oil block, Y-valve no
No
No
Yes
Malfunction is
Yes
eliminated.
No
No
Therefrigerant is leaking
andcause overheating protection to
compressor.
End
Replace a main
board with the
same model.
Clean the heat exchangers and remove
blockage of air inlet/outlet.
Check motor and reinstall the moto to
make it run normally.

Gree GRH120DB-K6NA1A Specifications

General

Brand	Gree
Model	GRH120DB-K6NA1A
Category	Air Conditioner
Language	English