Gree GMV-950WM/G-X User Manual

GMV DC Inverter VRF
68
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Error
Code
Content
Error
Code
Content
Debugging
U0
Preheat time of compressor is
insufficient
U2
Wrong setting of ODU’s capacity
code/jumper cap
U3
Power supply phase sequence
protection
U4 Refrigerant-lacking protection
U5
Wrong address for driving board of
compressor
U6 Alarm because valve is abnormal
U8
Malfunction of pipeline for IDU
U9
Malfunction of pipeline for ODU
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
Uy
PV module over-temperature
protection
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
A9
Set Back function
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 n1 Defrosting cycle K1 setting
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

Gree GMV-950WM/G-X Specifications

General

Brand	Gree
Model	GMV-950WM/G-X
Category	Inverter
Language	English