SiBE811001EB TroubleshootingCONVENI-PACK 2628.5.9 Outdoor Unit Thermistor AbnormalityError Code J3, J8, J9ApplicableModelsLCBKQ3AV1Method of ErrorDetectionError is detected from the temperature by each thermistorError DecisionConditionsWhen a thermistor disconnection or short circuit occurs during operationSupposedCauses Defective connection of thermistor Defective thermistor Defective outdoor unit PCBTroubleshooting∗1. Error code, details of trouble and electric symbolRefer to P.293.LED IndicationsJ3 J8 J9First digit l l h h l l h l l h h l l h l l h h l l hSecond digit l k h h h l l l k h l h h h l k h l h h lError code Corresponding thermistor LCBKQ3AV1Electric symbol ConnectorJ3 Discharge pipe thermistor R2T X12AJ8 Double tube heat exchanger inlet thermistor R3TJ9 Double tube heat exchanger outlet thermistor R5TCheck the connector connection (∗1)Disconnect the thermistor from theoutdoor unit PCB and use a tester tomeasure the resistance value.Replace the thermistor.Is the resistance normal? NOReplace the outdoor unit PCB.YESConnect the connector correctly.Is the connection normal? NOYESCHECK 13Caution Be sure to turn off the power switch before connecting or disconnecting connectors, or parts may be damaged.CHECK 13
