Troubleshooting SiBE12-908135 Service Diagnosis2.19 DC Fan LockRemoteController DisplayE7Method ofMalfunctionDetectionIdentify the fan motor system fault based on fan speed detected by Hall IC during high pressurefan motor running.MalfunctionDecisionConditions When the fan motor is running, the fan does not rotate for 150 seconds or more. Shut down when the error repeats 16 times Clear condition: The fan continuously rotates for 11 minutes. (without fault)SupposedCauses Failure in fan motor Disconnection or improper connection of harness/connector between fan motor and PCB The fan does not rotate because it gets caught in foreign matterTroubleshootingCheck No.23Refer to P.177(R9440)CautionBe sure to turn off power switch before connect or disconnect connector,or parts damage may be occurred.Try to operateNOYESCheck the outdoor unit PCB forrpm command pulse inputCheck No. 23Is the connector ofthe fan motordisconnected?NOYESIs the pulse input?YESNOIs there any foreignmatter around thefan?Turn off the power supply,then insert the connector.Remove them.Replace the outdoor fanmotor.Replace the outdoor unitPCB.
