Oil-Return - Gree GMV-Y72WM/C-F Owner's Manual

Photovoltaic Direct-driven Inverter VRF
Error Code
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
Emergency operation DIP switch
UL
code of compressor is wrong
UE Charging of refrigerant is invalid
Identification malfunction of IDU of
UF
mode exchanger
Drive board of grid-connection is
Ud
abnormal
Communication malfunction between
Un the drive board of grid-connection
and the main board
Communication malfunction between
C0
IDU, ODU and IDU's wired controller
Communication malfunction between
C1
main control and DC-DC controller
Communication malfunction between
C2 main control and inverter compressor
driver
Communication malfunction between
C3
main control and inverter fan driver
C4 Malfunction of lack of IDU
Status:
Error Code
A0 Unit waiting for debugging
Refrigerant recovery operation of
A2
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
Debugging confirmation when
AP
starting up the unit
AU Long-distance emergency stop
Ab Emergency stop of operation
Ad Limit operation
An Child lock status
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Error Code
CA Emergency status of module
CH Rated capacity is too high
CC No main unit
The matching ratio of rated capacity
CL
for IDU and ODU is too low
Communication malfunction
CE
between mode exchanger and IDU
Malfunction of multiple main control
CF
units
Address DIP switch code of system
CJ
is shocking
Malfunction of multiple wired
CP
controller
Communication malfunction
CU
between IDU and the receiving lamp
Cb Overflow distribution of IP address
Communication malfunction
Cd
between mode exchanger and ODU
Malfunction of network for IDU and
Cn
ODU of mode exchanger
Communication malfunction of mode
Cy
exchanger
Error Code
Ay Shielding status
n0 SE operation setting of system
n3 Compulsory defrosting
Limit setting for max. capacity/output
n4
capacity
Compulsory excursion of
n5
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
High temperature prevention when
nJ
heating
Eliminate the long-distance shielding
nU
command of IDU
nb Bar code inquiry
Length modification of connection
nn
pipe of ODU
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Content