Troubleshooting for RA Indoor Unit SiEBE18-526260 Troubleshooting4.3 Fan Motor or Related Abnormality4.3.1 AC Motor (Wall 20~35 C series, Duct, Floor / Ceiling)RemoteControllerDisplayA6Method ofMalfunctionDetectionThe rotation speed detected by the Hall IC during fan motor operation is used to determineabnormal fan motor operation.MalfunctionDecisionConditionsWhen the detected rotation speed is less than 50% of the HH tap under maximum fan motorrotation demand.SupposedCauses Operation halt due to short circuit inside the fan motor winding. Operation halt due to breaking of wire inside the fan motor. Operation halt due to breaking of the fan motor lead wires. Operation halt due to faulty capacitor of the fan motor. Detection error due to faulty control PCB.TroubleshootingCheck No.16Refer to P.267Rotate the fan by hand.Check No. 16Check Hall ICOperate the fan.Does it rotate?NODoes it rotate smoothly?Is there an output?Is it at the rated voltage?∗Is there conductivity?NOCheck the capacitor'sconductivityCheck the fan motor voltage.(immediately after re-start)Is it at the rated voltage?∗Check the fan motor voltage.NONONONOYESYESYESYESYESYESReplace the fan motor or controlPCB.Replace the fan motorReplace control PCB.Replace the fan motor.Replace the control PCB.∗ Measure the voltage betweenthe red and black lead wires ofthe fan motor, and check if themaximum voltage reaches therated voltage.Replace the capacitor.(Replace the control PCB.)Replace the fan motor. (R3219)CautionBe sure to turn off power switch before connect or disconnect connector,or parts damage may be occurred.
