74TROUBLE SHOOTING4-2-7) Self-Diagnosis Error (Defective Sensor)Compare the room temp.with sensed temp. usingTemp-Resistance Table.- When there is sensor error, display panel show that. When it occurs during the initial power on time, displaypanel keeps blinking relevant 7-SEG and the refrigerator go into the emergency operation mode.- Under the emergency operation mode, the refrigerator can not do its normal operation. So check out with theSelf Diagnosis in this manual.StartRepair the defective contactof the connector or insertthe connector properlyNOYES1) When the Ambient Sensor is defective,MAIN PBAconnector (CN40) is insertedproperly.Replace ThermistorNOYESAmbient Temp Sensoris ok.Ambient-Sensor : Readthe resistance betweenCN40 #1 and #2PBA & Thermistor are ok.Check the contact of theconnector again.Refer to Circuit Diagramand Temp SensorTroubleshooting in thismanual.Refer to Circuit Diagramand Temp SensorTroubleshooting in thismanual.StartReplace ThermistorNOYES2) When the Fridge Temp Sensor is defective (also applied to other sensors)Fridge Sensor is good.Repair the defective contactof the connector or insertthe connector properlyNOYESMAIN PBA Connector(CN40) is properlyinsertedYESCheck the circuit diagram andcorrect any wrong insertedconnectorsNOThe order ofConnector(CN40) is the sameas the one in the circuitdiagramYESCheck MAIN PBA ColdSolder or ShortNOThe voltage betweenCN40 #8 and #9 is within thenormal range.PBA & Thermistor are good.Check the contact of the connector again.