SiENBE05-722_A TroubleshootingService Diagnosis 793.11 DC Fan LockRemote ControlDisplayE7Method ofMalfunctionDetectionAn error is determined with the high-voltage fan motor rotation speed detected by the Hall IC.MalfunctionDecisionConditions The fan does not start in 15 ~ 60 seconds (depending on the model) even when the fanmotor is running. If the error repeats 16 times, the system is shut down. Reset condition: Continuous run for about 11 minutes without any other errorSupposedCauses Disconnection of the fan motor Foreign matters stuck in the fan Defective fan motor Defective outdoor unit PCBTroubleshootingCheck No.15Refer to P.109(R11708)CautionYESYESNOYESNONOYESNOTurn on the power.Rotate the fan.Check No. 15Check the rotation pulse input onthe outdoor unit PCB.Turn off the power andreconnect the connector.Remove them.Replace the outdoor fanmotor.Replace the outdoor unitPCB.Fan motorconnector disconnected?Foreign matters in oraround the fan?Replace the outdoor fanmotor.Fan rotates smoothly?Pulse signal generated?Be sure to turn off the power switch before connecting or disconnectingconnectors, or parts may be damaged.
