Troubleshooting by Indication on the Remote Controller SiBE34-802174 Troubleshooting3.26 “H9” Outdoor Unit: Malfunction of Thermistor (R1T) forOutdoor AirRemoteControllerDisplayH9ApplicableModelsRXYSQ4~6PAMethod ofMalfunctionDetectionMalfunction is detected from the temperature detected by the outdoor air thermistor.MalfunctionDecisionConditionsWhen the outside air temperature thermistor has short circuit or open circuit.SupposedCauses Defect of thermistor (R1T) for outdoor air Defect of outdoor unit PC board (A1P)Troubleshooting∗ Refer to “Thermistor Resistance / Temperature Characteristics” table on P251.(V3070)CautionBe sure to turn off power switch before connect or disconnect connector,or parts damage may be occurred.Resistanceis normal whenmeasured afterdisconnecting the thermistor(R1T) from the outdoorunit PC board.(3.5kΩ to360kΩ)Connector isconnected to X11A ofoutdoor PC board(A1P).Replace outdoor unit PC board(A1P).Connect the connector and turn onagain.NONOReplace the thermistor (R1T).YESYES
