Gree GMV5 - Page 169

GREE Photovoltaic Direct-driven Inverter Multi VRF Units
165
2.3.4.7 “A8” Vacuum mode
Error display:
ODU mainboard will display
Error judgment condition and method:
This code is status code, which means the system has entered into vacuum mode, corresponding
expansion valve and solenoid valve will open.
Possible reason
：
——
Troubleshooting:
status code, no troubleshooting.
2.3.4.8 “AH” Heating status
Error display:
ODU mainboard will display
Error judgment condition and method:
This code is status code, which means the system has entered into heating mode for operation.
Possible reason
：
——
Troubleshooting:
status code, no troubleshooting.
2.3.4.9 “AC” Cooling status
Error display:
ODU mainboard will display
Error judgment condition and method:
This code is status code, which means the system has entered into cooling mode for operation.
Possible reason
：
——
Troubleshooting:
status code, no troubleshooting.
2.3.4.10 “AF” Supply air status
Error display:
ODU mainboard will display
Error judgment condition and method:
This code is status code, which means the system has entered into supply air mode, at this time, all
IDUs can only be operated under supply air mode.
Possible reason
：
——
Troubleshooting:
status code, no troubleshooting.
2.3.4.11 “AE” Manual refrigerant charging status
Error display:
ODU mainboard will display
Error judgment condition and method:
This code is status code, which means the system adopts manual refrigerant charging status.
Possible reason
：
——