ESIE09-08 Troubleshooting by Indication on the Remote ControllerTroubleshooting 1633.24 “H9” Outdoor Unit: Malfunction of Thermistor (R1T) forOutdoor AirRemote ControlDisplayH9ApplicableModelsER*Q 011~016*Method 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 page 229.(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)Connectoris connected to X11Aof outdoor PC board(A1P).Replace outdoor unit PC board(A1P).Connect the connector and turnon again.NONOReplace the thermistor (R1T).YESYES
