Gree GMV5

GREE Photovoltaic Direct-driven Inverter Multi VRF Units
144
Debugging:
Error Code Content Error Code Content
U0 Preheat time of compressor is insufficient C6
Alarm because ODU quantity is
inconsistent
U2
Wrong setting of ODU’s capacity
code/jumper cap
C7 Abnormal communication of converter
U3
Power supply phase sequence protection
C8
Emergency status of compressor
U4
Refrigerant-lacking protection
C9
Emergency status of fan
U5
Wrong address for driving board of
compressor
CA Emergency status of module
U6
Alarm because valve is abnormal
CH
Rated capacity is too high
U8
Malfunction of pipeline for IDU
CC
No main unit
U9 Malfunction of pipeline for ODU CL
The matching ratio of rated capacity for
IDU and ODU is too low
UC Setting of main IDU is succeeded CE
Communication malfunction between
mode exchanger and IDU
UL
Emergency operation DIP switch code of
compressor is wrong
CF Malfunction of multiple main control units
UE Charging of refrigerant is invalid CJ
Address DIP switch code of system is
shocking
UF
Identification malfunction of IDU of mode
exchanger
CP Malfunction of multiple wired controller
C0
Communication malfunction between
IDU, ODU and IDU’s wired controller
CU
Communication malfunction between
IDU and the receiving lamp
C2
Communication malfunction between
main control and inverter compressor
driver
Cb Overflow distribution of IP address
C3
Communication malfunction between
main control and inverter fan driver
Cd
Communication malfunction between
mode exchanger and ODU
C4 Malfunction of lack of IDU Cn
Malfunction of network for IDU and ODU
of mode exchanger
C5
Alarm because project code of IDU is
inconsistent
Cy
Communication malfunction of mode
exchanger