Troubleshooting by Indication on the Remote Controller Si34-603162 Troubleshooting3.27 “J9” Outdoor Unit: Malfunction of Subcooling HeatExchanger Gas Pipe Thermistor (R6T)RemoteControllerDisplayJ9ApplicableModelsRX(Y)MQ4~6PMethod ofMalfunctionDetectionMalfunction is detected according to the temperature detected by subcooling heat exchangergas pipe thermistor.MalfunctionDecisionConditionsWhen the subcooling heat exchanger gas pipe thermistor is short circuited or open.SupposedCauses Faulty subcooling heat exchanger gas pipe thermistor (R6T) Faulty outdoor unit PC boardTroubleshooting∗ Refer to “Thermistor Resistance / Temperature Characteristics” table on P231.(V3075)CautionBe sure to turn off power switch before connect or disconnect connector,or parts damage may be occurred.Is theresistancemeasured afterremoving the thermistor(R6T) from outdoor unit PCboard normal?(3.5 kΩ to360 kΩ)Replace outdoor unit PC board(A1P).Connect connector and operateunit again.NONOReplace thermistor (R6T).YESYESIsthe connectorfor subcooling heatexchanger gas pipethermistor connected tooutdoor unitPC board(A1P)?
