Error Indication - Gree GMV-224WM/G-U Owner's Manual

7.2 Error Indication

NOTICE!
For specific unit fault and maintenance, please refer to the engineering debugging and
after-sales maintenance manual of DC inverter VRF unit.
Error
—
Code
L0 Malfunction of IDU
L2 Auxiliary heating protection
L4 Abnormal power supply for wired controller
L6 Mode conflict
L8 Power supply is insufficient
For single control over multiple units, IDU
LA
series is inconsistent (HBS network)
LC IDU is not matching with outdoor unit
Rotation speed of EC DC water pump is
LE
abnormal
Setting of functional DIP switch code is
LJ
wrong
Indoor unit's branch is not inconsistent for
LU
one-to-more unit of heat recovery system
d1 Indoor PCB is poor
d3 Malfunction of ambient temperature sensor
d5 Malfunction of mid-tube temperature sensor
d7 Malfunction of humidity sensor
Indoor
d9 Malfunction of jumper cap
dH PCB of wired controller is abnormal
dL Malfunction of air outlet temperature sensor
Malfunction of upper water temperature
dF
sensor of water tank
Malfunction of inlet tube temperature
dP
sensor of generator
db Debugging status
dn Malfunction of swing parts
Malfunction of entry-tube temperature
y1
sensor 2
Malfunction of fresh air inlet temperature
y7
sensor
yA Malfunction of IFD
o2 High bus bar voltage of IDU
o4 Failure startup of IDU
o6 Current detection circuit malfunction of IDU
o8 Communication malfunction of IDU's drive
oA High temperature of IDU's module
oC Charging circuit malfunction of IDU
Content
63
Error
Code
L1 Protection of indoor fan
L3 Water-full protection
L5 Freeze prevention protection
L7 No main IDU
For single control over multiple units,
L9 number of IDU is inconsistent (HBS
network)
LH Alarm due to bad air quality
LL Malfunction of water flow switch
LF Malfunction of shunt valve setting
LP Zero-crossing malfunction of PG motor
For single control over multiple units, IDU is
Lb inconsistent (reheating-dehumidifying
system)
Malfunction of lower water temperature
d2
sensor of water tank
Malfunction of entry-tube temperature
d4
sensor
Malfunction of exit-tube temperature
d6
sensor
d8 Malfunction of water temperature sensor
dA Web address of IDU is abnormal
Setting capacity of DIP switch code is
dC
abnormal
dE Malfunction of indoor CO
Malfunction of backwater temperature
dJ
sensor
Malfunction of drainage pipe temperature
dU
sensor of generator
Malfunction of solar power temperature
dd
sensor
dy Malfunction of water temperature sensor
Malfunction of exit-tube temperature
y2
sensor 2
y8 Malfunction of IDU's air box sensor
o1 Low bus bar voltage of IDU
o3 IPM module protection of IDU
o5 Over-current protection of IDU
o7 Desynchronizing protection of IDU
Communication malfunction of main mater
o9
of IDU
Malfunction of temperature sensor of IDU's
ob
module
o0 Other drive malfunction
GMV DC Inverter VRF
Content
sensor
2