Panasonic CU-5E36QBU-5 Service Manual

Also see for CU-5E36QBU-5: Operating instructions

5915.2.7 H32 (Outdoor Heat Exchanger Temperature Sensor 2 Abnormality)Malfunction Decision Conditions During startup and operation of cooling and heating, the temperatures detected by the outdoor pipe temperaturesensor 2 are used to determine sensor errors.Malfunction Caused Faulty connector connection. Faulty sensor. Faulty outdoor unit PCB.Abnormality Judgment: Continue for 5 seconds.TroubleshootingCheck the outdoor pipe temperature sensor 2:- Plug out connector from the outdoor unit PCB- Measure the resistance of the outdoor pipetemperature sensor 2- Defect in outdoor pipetemperature sensor 2- Replace the outdoor pipetemperature sensor 2YesIs the measured resistance of theoutdoor pipe temperature sensor2 matches the value specified inits characteristic chart?NoCheck the CN-TH2 connector connection:- Turn OFF the power- Check the connector connection- Connector poor contact- Correct the connectionNoIs the CN-TH2 connectorconnection normal?- Defect in outdoor unit PCB- Replace the outdoor unit PCBYesFor safety reason and to prevent componentbreakdown, always switch off the powerbefore remove and connect the component.Sensor (Thermistor)CharacteristicsOutdoor Air SensorOutdoor Heat ExchangerSensor1212706050403020-10(14)0(32)10(50)20(68)30(86)40(104)50(122)100Resistance (kΩ)Temperature °C (°F)Caution