Gree GMV-784WM/H-X - Page 75

GMV DC Inverter VRF
71
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Error
Code
Content
Error
Code
Content
Debugging
UC Setting of main IDU is succeeded UL
Emergency operation DIP switch code of
compressor is wrong
UE Charging of refrigerant is invalid UF
Identification malfunction of IDU of mode
exchanger
Ud
Drive board of grid-connection is
abnormal
Un
Communication malfunction between the
drive board of grid-connection and the main
board
C0
Communication malfunction between
IDU, ODU and IDU's wired controller
C1
Communication malfunction between main
control and DC-DC controller
C2
Communication malfunction between
main control and inverter compressor
driver
C3
Communication malfunction between main
control and inverter fan driver
C4 Malfunction of lack of IDU C5
Alarm because project code of IDU is
inconsistent
C6
Alarm because ODU quantity is
inconsistent
C7 Abnormal communication of converter
C8 Emergency status of compressor C9 Emergency status of fan
CA Emergency status of module CH Rated capacity is too high
CC No main unit CL
The matching ratio of rated capacity for IDU
and ODU is too low
CE
Communication malfunction between
mode exchanger and IDU
CF Malfunction of multiple main control units
CJ
Address DIP switch code of system is
shocking
CP Malfunction of multiple wired controller
CU
Communication malfunction between
IDU and the receiving lamp
Cb Overflow distribution of IP address
Cd
Communication malfunction between
mode exchanger and ODU
Cn
Malfunction of network for IDU and ODU of
mode exchanger
Cy
Communication malfunction of mode
exchanger
- -
Status
A0 Unit waiting for debugging A2
Refrigerant recovery operation of after-sales
A3 Defrosting A4 Oil-return
A6 Heat pump function setting A7 Quiet mode setting
A8 Vacuum pump mode AH Heating
AC Cooling AL Charge refrigerant automatically
AE Charge refrigerant manually AF Fan
AJ Cleaning reminding of filter AP
Debugging confirmation when starting up the
unit
AU Long-distance emergency stop Ab Emergency stop of operation
Ad Limit operation An Child lock status
Ay Shielding status n0 SE operation setting of system
n3 Compulsory defrosting n4
Limit setting for max. capacity/output
capacity
n5
Compulsory excursion of engineering
code of IDU
n6 Inquiry of malfunction
n7 Inquiry of parameters n8 Inquiry of project code of IDU
n9
Check quantity of IDU on line
nA
Heat pump unit
nH Heating only unit nC Cooling only unit
nE Negative code nF Fan model
nJ
High temperature prevention when
heating
nU
Eliminate the long-distance shielding
command of IDU
nb Bar code inquiry nn
Length modification of connection pipe of
ODU