Gree HLR45SNa-M - Troubleshooting

Household (Townhouse) Central Air Conditioning Unit
10
When dealing with problems, professional personnel can remove malfunctions according to following list:
Common error Reason Solution (done by professionals)
1. Compressor doesn’t work.
A
、
Error on power
B
、
Wire loose
C
、
Error on relay or insurance
D
、
Temp. is set too high
E
、
Error on compressor
●Check and re-tighten
●Check error reason and repair
●Reset ●Change compressor
2. Fan noise is large
A
、
Fan xing bolts are loose
B
、
Fan louver touched outer case
or net cover
C
、
Operation of fan is not steady
●Retighten fan xing bolt
●Check reason and adjust
●Change fan
3. Compressor noise is large
A
、
Liquid hit produced when
liquid refrigerant ows in compressor
B
、
Components inside compressor
are damaged.
●Check is expand value is
ineffective, temp. sensor is
loose, and repair
●Changer compressor
4. Water pump doesn’t
operate or operate abnormally
A
、
Error on power or wiring
B
、
Error on relay
C
、
There is gas in water pipe
●Check reason and repair
●Exchanger relay
●Exhaust all gas
5. Cooling effect is bad.
A
、
Freon in cooling system leaks
B
、
Heat preservation of water
pipe is bad.
C
、
Water ow quantity is not enough
D
、
Heavy dust on condenser
E
、
Cooling system
●Check and repair and recharge Freon.
●Strengthen heat preservation
●Clean water lter
●Clean condenser
●Check or change dry lter
6.Compressor frequently on
and off.
A
、
Freon leakage on system and
refrigerant shortage
B
、
Dry lter is blocked
C
、
Error on heat expand
valve.
D
、
Water system circulation is bad.
●Exhaust some refrigerant
●Water system is blocked or there
is air. Check water pump, valve,
pipeline, clean water lter or exhaust
air.
●Adjust load or increase energy store
facility.
7. Refrigerate system and
refrigerant
A
、
Freon leakage on system and
refrigerant
shortage.
B
、
Dry lter is blocked
C
、
Error on heat expand
valve.
D
、
Water system circulation is bad.
●Check and repair and recharge
refrigerant.
●Change dry lter
●Check if expanse valve is
blocked, temp. sensor is leaking, then
repair or change.
●Check water system and solve.
8.Compressor operates but
unit doesn’t cool.
A
、
All refrigerant is leaked
B
、
Freeze evaporator is freeze.
C
、
Compressor error
●Check, repair and charge
refrigerant
●Check reason and remove
Freezing
●Change compressor