Si04-115 Trouble shootingService Diagnosis 755.10 Operation Halt Due to Thermistor Error or DisconnectionDetectionRemoteControllerDisplayJ3,J3,J3,J3, J6,J6,J6,J6, H9H9H9H9Outdoor unit LEDDisplayA 5Method ofMalfunctionDetectionThermistor errors are detected using thermistor input voltage to micro computer. (Thermistorerrors are detected using the temperatures detected by the thermistors.)MalfunctionDecisionConditionsWhen the thermistor input during compressor operation is more than 4.96 V or less than 0.04 V.∗ Value changes depends on modelsSupposedCauses" Faulty connector connection" Faulty thermistor" Faulty PCBTroubleshootingCheck No.5Refer to P.88J3 : Discharge pipe thermistorJ6 : Outdoor unit heat exchanger thermistorH9 : Outside air thermistorCorrect the connection.Replace the thermistor.Replace the outdoor unit P.C.B.Is it normal?Check No. 5Thermistor resistance checkCheck the connector connection.YESYESIs it normal? NONO(R1952)CautionBe sure to turn off power switch before connect or disconnect connector,or parts damage may be occurred.
