Troubleshooting SiBE12-908129 Service Diagnosis2.13 Incompatible Power Supply between Indoor Unit andOutdoor UnitRemoteController DisplayUAMethod ofMalfunctionDetectionCheck the incompatible power supply between indoor unit and outdoor unit by using signaltransmission.Method ofMalfunctionDetectionIn case that the indoor intake model is connected to outdoor intake model.SupposedCauses Connected to wrong model Mounted improper indoor unit PCB Defective indoor unit PCB Mounted improper outdoor unit PCB or defective PCBTroubleshooting(R9436)CautionBe sure to turn off power switch before connect or disconnect connector,or parts damage may be occurred.Is the combination ofthe indoor unit andthe outdoor unitcorrect?Check model names of the indoorunit and the outdoor unitArrange for a correctcombination.YESNOReplace the indoor controlPCB (A1P) (or replace theoutdoor unit PCB).
