Gree GMV6 DC Inverter VRF Units Service Manual
2.102 "L1" Indoor Fan Protection
Fault display: wired controller of indoor unit and receiver of indoor unit display
Applicable models: all indoor units
Fault diagnosis:
Check whether the indoor unit rotates slowly or stops or whether there exists external fan protection
signal. If yes, it indicates the indoor fan protection.
Possible causes:
■ The motor stops or is stuck
■ The main board of indoor unit operates improperly
Troubleshooting:
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