Gree GMV5E Series Service Manual page 165

GREE
Troubleshooting:
2.2.4.33 "C8" Compressor emergency operation status.
Error display: ODU mainboard will display
Error judgment condition and method:
If any compressor in the module is set with emergency operation status, the mainboard will display
"C8" to indicate that the system has entered compressor emergency operation status during operation
Possible reason：——
Troubleshooting: status code, no troubleshooting.
2.2.4.34 "C9" Emergency operation status of fan.
Error display: ODU mainboard will display
Error judgment condition and method:
If any fan in the module is set with emergency operation status, the mainboard will display "C9" to
indicate that the system has entered compressor emergency operation status during operation
Possible reason：——
Troubleshooting: status code, no troubleshooting.
2.2.4.35 "CA" Emergency operation status of module.
Error display: ODU mainboard will display
Error judgment condition and method:
If any compressor in the module is set with emergency operation status, the mainboard will display
"C8" to indicate that the system has entered compressor emergency operation status during operation
Possible reason：——
Troubleshooting: status code, no troubleshooting.
GMV5E DC INVERTER VRF UNITS SERVICE MANUAL
161