Gree GMV-224WM/G-X Owner's Manual page 72

GMV DC Inverter VRF
Error
—
Code
U0
U3
U5
U8
UC
UE
Ud
Uy
C1
Debugging
C3
C5
C7
C9
CH
CL
CF
CP
Cb
Cn
A0
A3
A6
A8
AH
AL
AF
AP
Status
Ab
An
n0
n3
n5
n7
Content
Preheat time of compressor is
insufficient
Power supply phase sequence
protection
Wrong address for driving board of
compressor
Malfunction of pipeline for IDU
Setting of main IDU is succeeded
Charging of refrigerant is invalid
Drive board of grid-connection is
abnormal
PV module over-temperature
protection
Communication malfunction
between main control and DC-DC
controller
Communication malfunction
between main control and inverter
fan driver
Alarm because project code of IDU
is inconsistent
Abnormal communication of
converter
Emergency status of fan
Rated capacity is too high
The matching ratio of rated capacity
for IDU and ODU is too low
Malfunction of multiple main control
units
Malfunction of multiple wired
controller
Overflow distribution of IP address
Malfunction of network for IDU and
ODU of mode exchanger
Unit waiting for debugging
Defrosting
Heat pump function setting
Vacuum pump mode
Heating
Charge refrigerant automatically
Fan
Debugging confirmation when
starting up the unit
Emergency stop of operation
Child lock status
SE operation setting of system
Compulsory defrosting
Compulsory excursion of
engineering code of IDU
Inquiry of parameters
Error
Code
Wrong setting of ODU's capacity
U2
code/jumper cap
U4 Refrigerant-lacking protection
U6 Alarm because valve is abnormal
U9 Malfunction of pipeline for ODU
Emergency operation DIP switch
UL
code of compressor is wrong
Identification malfunction of IDU of
UF
mode exchanger
Communication malfunction
Un between the drive board of grid-
connection and the main board
Communication malfunction
C0 between IDU, ODU and IDU's
wired controller
Communication malfunction
C2 between main control and inverter
compressor driver
C4 Malfunction of lack of IDU
Alarm because ODU quantity is
C6
inconsistent
C8 Emergency status of compressor
CA Emergency status of module
CC No main unit
Communication malfunction
CE
between mode exchanger and IDU
Address DIP switch code of
CJ
system is shocking
Communication malfunction
CU between IDU and the receiving
lamp
Communication malfunction
Cd between mode exchanger and
ODU
Communication malfunction of
Cy
mode exchanger
Refrigerant recovery operation of
A2
after-sales
A4 Oil-return
A7 Quiet mode setting
A9 Set Back function
AC Cooling
AE Charge refrigerant manually
AJ Cleaning reminding of filter
AU Long-distance emergency stop
Ad Limit operation
Ay Shielding status
n1 Defrosting cycle K1 setting
Limit setting for max.
n4
capacity/output capacity
n6 Inquiry of malfunction
n8 Inquiry of project code of IDU
68
Content