Gree GMV-WQ120WM/A-F, Owner'S Manual

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Water-cooled Heat Recovery DC Inverter VRF
52
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 state 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 success. 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.
C1
Communication malfunction between
main control and DC-DC controller.
Cb Overflow distribution of IP address.
C2
Communication malfunction between
main control and inverter compressor
driver.
Cd
Communication malfunction between
mode exchanger and ODU.
C3
Communication malfunction between
main control and inverter fan driver.
Cn
Malfunction of network for IDU and
ODU of mode exchanger.
C4 Malfunction of lack of IDU. Cy
Communication malfunction of mode
exchanger.
C5
Alarm because project code of IDU is
inconsistent.
JJ
Low temperature protection of inlet
tube.
Status:
Error Code Content Error Code Content
A0 Unit waiting for debugging. Ay Shielding status.
A2
Refrigerant recovery operation of
after-sales.
n0 SE operation setting of system.
A3 Defrosting. n3 Compulsory defrosting.
A4 Oil-return. n4
Limit setting for max. capacity/output
capacity.
A6 Heat pump function setting. n5
Compulsory excursion of engineering
code of IDU.
A7 Quiet mode setting. n6 Inquiry of malfunction.
A8 Vacuum pump mode. n7 Inquiry of parameters.
AH Heating. n8 Inquiry of project code of IDU.
AC Cooling. n9 Check quantity of IDU on line.
AL Charge refrigerant automatically. nA Heat pump unit.
AE Charge refrigerant manually. nH Heating only unit.
AF Fan. nC Cooling only unit.
AJ Cleaning reminding of filter. nE Negative code.
AP
Debugging confirmation when starting
up the unit.
nF Fan model.