Troubleshooting SiBE05-513A88 Service Diagnosis4.7 Unspecified Voltage (between Indoor and Outdoor Units)RemoteControllerDisplayUAMethod ofMalfunctionDetectionThe supply power is detected for its requirements (different from pair type and multi type) by theindoor / outdoor transmission signal.MalfunctionDecisionConditionsThe pair type and multi type are interconnected.SupposedCauses Wrong models interconnected Wrong indoor unit PCB mounted Indoor unit PCB defective Wrong outdoor unit PCB mounted or defectiveTroubleshootingCheck the indoor and outdoor unitmodel numbers.Match the compatiblemodels.Change for the specifiedPCB (1) or (2).Replace the indoor unitPCB (1) (or the outdoor unitPCB). (Q0347)CautionBe sure to turn off power switch before connect or disconnect connector,or parts damage may be occurred.Indoor unit and outdoor unitmatched?NOYESYESMatched compatibly? NOCheck the code numbers(2P01234, for example) of theindoor and outdoor unit PCB withthe Parts List.Check the indoor and outdoor unitmodel numbers.Match the compatiblemodels.Change for the specifiedPCB (1) or (2).Replace the indoor unitPCB (1) (or the outdoor unitPCB). (Q0347)CautionBe sure to turn off power switch before connect or disconnect connector,or parts damage may be occurred.Indoor unit and outdoor unitmatched?NOYESYESMatched compatibly? NOCheck the code numbers(2P01234, for example) of theindoor and outdoor unit PCB withthe Parts List.
