Gree GMV-280WL/C-X - Error Indication

DC Inverter Multi VRF System
31
（2） Following circumstances are not malfunctions.
Malfunction
Reason
Unit doesn’t run.
Unit starts up immediately after it is
turned off.
Overload protection switch makes it run after a
3-min delay.
Power is just turned on.
Standby operation lasts for about 1min.
Mist comes from
the unit.
Under cooling
Indoor air with high humidity is cooled rapidly.
Noise is emitted.
Slight cracking sound is heard when unit
is just turned on.
It is the noise when electronic expansion valve is
initialized.
There is consecutive sound when
cooling.
It is the sound for gas refrigerant flowing in the
unit.
There is sound when unit starts or stops.
It is the sound when gas refrigerant stops
flowing.
There is slight and consecutive sound
when unit is running or after running.
This is the sound of drainage operation.
Cracking sound is heard when unit is
running or after running.
This is the sound caused by the expansion of
panel and other parts of the unit due to
temperature change.
Unit blows out
dust.
Unit starts up after not operating for a
long time.
Dust in indoor unit is blown out.
Unit emits odor.
Under operation
Unit absorbs the room odor and then blows it
out.
7 Error Indication
Inquiry method of error indication: combine division symbol and content symbol to check the
corresponding error.
For example, division symbol L and content symbol 4 together means over-current protection.
Error Code
Content
Error Code
Content
Indoor
L0
Malfunction of IDU (uniform)
L1
Protection of indoor fan
L2
Auxiliary heating protection
L3
Water-full protection
L4
Over-current protection
L5
Freeze prevention protection
L6
Mode shock
L7
No main IDU
L8
Power supply is insufficient
L9
1-to-more: number of IDU is
inconsistent
LA
1-to-more: IDU series is
inconsistent
LH
Alarm due to bad air quality
(Fresh air unit)
LC
Models for IDU and ODU are
not matched
EC
Drop protection of discharge
temperature sensor of
compressor 1
d1
Indoor PCB is poor
d3
Malfunction of ambient
temperature sensor
d4
Malfunction of entry-tube
temperature sensor
d5
Malfunction of middle temperature
sensor
d6
Malfunction of exit-tube
temperature sensor
d7
Malfunction of humidity sensor
d9
Malfunction of jumper cap
dA
Web address of IDU is abnormal
dH
PCB of wired controller is
abnormal
dC
Abnormal setting for capacity
button
dL
Malfunction of air-outlet
temperature sensor(Fresh air
unit)
dE
Malfunction of indoor CO
2
sensor
(fresh air unit)
FP
Malfunction of DC motor
J7
Gas-mixing protection of 4-way
valve
J8
High pressure ratio protection
of system
J9
Low pressure ratio protection of
system
JA
Protection due to abnormal
pressure
JL
High-pressure protection
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