Gree GRH120DB-K6NA1A User Manual

32
Installation and Maintenance
3. Overload malfunction E8
Cleanthe heatexchangers andremove
blockage of airinlet/outlet.
Checkmotor andre-installthe moto
to make it run normally.
Make compressor run normally.
Remove blockage in the system.
Replace thetemperaturesensor.
Troubleshooting
forE8malfunction
Yes
Whetherthe environment
is formidable
Malfunctionis
eliminated.
Yes
No
No
Operatethe unit afterambient tempeature and
humidityis decreased or move theunittothe
placewithlow abient temprature andhumidity.
Yes
Malfunctionis
eliminated.
Heat exchangers are
too dirty or the air inlet/outlet
is blocked.
Yes
No
No
Yes
Malfunctionis
eliminated.
Yes
No
No
Yes
Casing is toohot.
Compressor doesn'twork
normally.Strange noiseorleakageoccurs.
Malfunctionis
eliminated.
Yes
No
No
fullyopen).
Yes
Malfunctionis
Systemis blockedinside
(dirt block, iceblock,oil block, Y-valveno
eliminated.
Yes
No
No
Yes
Temperaturesensorofmainboard
can'tdetectcorrectly.
Malfunctionis
Yes
eliminated.
No
No
End
Replace a main
board withthe
same model.
Fan motor doesn't work at a
normal fan speed; fan speed is too low
or the fan doesn't run

Gree GRH120DB-K6NA1A Specifications

General

Brand	Gree
Model	GRH120DB-K6NA1A
Category	Air Conditioner
Language	English