GREE GMV5E DC INVERTER VRF UNITS Error Code And Solution

 GREE GMV5E DC INVERTER VRF UNITS SERVICE MANUAL

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 CO2 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     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 

Outdoor:

Error Code Content Error Code Content 

E0   Malfunction of ODU 

FH    Current sensor of compressor 1 is abnormal 

E1     High-pressure protection 

FC    Current sensor of compressor 2 is abnormal 

E2    Discharge low-temperature protection

 FL    Current sensor of compressor 3 is abnormal 

E3     Low-pressure protection 

FE    Current sensor of compressor 4 is abnormal 

E4    High discharge temperature protection of 

FF    Current sensor of compressor 5 is