Gree GMV5

GREE Photovoltaic Direct-driven Inverter Multi VRF Units
141
CHAPTER 4 MAINTENANCE
1 SYSTEM FAILURE CODE TABLE
Indoor:
Error Code
Content
Error Code
Content
L0 Malfunction of IDU d2
Malfunction of lower water temperature
sensor of water tank
L1 Protection of indoor fan d3
Malfunction of ambient temperature
sensor
L2 Auxiliary heating protection d4
Malfunction of entry-tube temperature
sensor
L3 Water-full protection d6
Malfunction of exit-tube temperature
sensor
L4
Abnormal power supply for wired
controller
d7 Malfunction of humidity sensor
L5
Freeze prevention protection
d8
Malfunction of water temperature sensor
L7
No main IDU
d9
Malfunction of jumper cap
L8
Power supply is insufficient
dA
Web address of IDU is abnormal
L9
For single control over multiple units,
number of IDU is inconsistent
dH PCB of wired controller is abnormal
LA
For single control over multiple units,
IDU series is inconsistent
dC
Setting capacity of DIP switch code is
abnormal
LH Alarm due to bad air quality dL
Malfunction of air outlet temperature
sensor
LC
IDU is not matching with outdoor unit
dE
Malfunction of indoor CO
2
sensor
LL Malfunction of water flow switch dF
Malfunction of upper water temperature
sensor of water tank
LE
Rotation speed of EC DC water pump is
abnormal
dJ
Malfunction of backwater temperature
sensor
LF Malfunction of shunt valve setting dP
Malfunction of inlet tube temperature
sensor of generator
LJ
Setting of functional DIP switch code is
wrong
dU
Malfunction of drainage pipe
temperature sensor of generator
LP
Zero-crossing malfunction of PG motor
db
Debugging status
LU
Indoor unit’s branch is not inconsistent
for one-to-more unit of heat recovery
system
dd
Malfunction of solar power temperature
sensor
d1
Indoor PCB is poor
dn
Malfunction of swing parts