SiBE34-802 Troubleshooting by Indication on the Remote ControllerTroubleshooting 1493.6 Abnormal Power Supply VoltageRemoteControllerDisplayA8ApplicableModelsFXMQ40~125PMethod ofMalfunctionDetectionDetect malfunction checking the input voltage of fan motor.MalfunctionDecisionConditionsWhen the input voltage of fan motor is 150V and below, or 386V and above.SupposedCausesThe possible causes are: Power-supply voltage malfunction. Connection defect on signal line. Wiring defect. Instantaneous blackout, others.TroubleshootingCautionBe sure to turn off power switch before connect or disconnect connector,or parts damage may be occurred.Check the condition of thepower source. Check if power-supply voltageis 220V - 240V ± 10%. Check if there is power openphase or faulty wiring. Check if power-supply voltageside unbalance is within 6V."A8"Reoccurrence ofmalfunction.YES Check and correct eachwiring.It is possible to have externalfactor, such as brownout andinstantaneous blackout.Thereare problems on thecondition of power sourcedescribedabove.YES Correct any fault.NONO