Troubleshooting by Indication on the Remote Controller SiBE34-802160 Troubleshooting3.15 “CA” Indoor Unit: Malfunction of Thermistor forDischarge AirRemoteControllerDisplayCAApplicableModelsAII indoor unit modelsMethod ofMalfunctionDetectionMalfunction detection is carried out by temperature detected by discharge air temperaturethermistor.MalfunctionDecisionConditionsWhen the discharge air temperature thermistor becomes disconnected or shorted while the unitis running.SupposedCauses Defect of indoor unit thermistor for air outlet Defect of indoor unit PC boardTroubleshooting∗ Refer to thermistor resistance / temperature characteristics table on P251.CautionBe sure to turn off power switch before connect or disconnect connector,or parts damage may be occurred.Replace the indoor unit PC board.Connect the thermistor and turnon again.NONOReplace the thermistor.YESYESConnectoris connected to the indoorunit PC board.Resistanceis normal whenmeasured afterdisconnecting the thermistorfrom the indoor unitPC board.(7.2kΩ~112kΩ)(V2786)
