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Samsung Electronics 57Check Operation & Amount of Refriherant Automatically Checking1-2 How to troubleshoot of the "Undetermined"1) Indoor Unit Temperature sensorC Inspection item : Indoor temperature of each Indoor Unit, EVA In / Out Temperature sensorC Error code: None (The resulting report "Undetermined")C Determine the status of the Temperature sensor of the Indoor Unit installed before the compressor start.C Commissioning methodsResistance measurement method Afterseparating the Temperature sensor connectorfrom the PCB, measure the resistance valuebetween the two terminals.[Caution]- If the Outdoor Unit with a history of operation (Automatic commissioning inclusion) : Must be carried out Automatic Commissioning after 1hour from final operation stopped.YesBlast operation for more than 10 minutesIndoor Temperaturesensor setting(Remotecontrol indoor unit)NoIs deviations of the Indoor Unit Temperaturesensors, more than 10 ?NoNoIs Indoor temperature of the Indoor Unit by wired remotecontrol setting?Check the breakaway of sensor or replace PCBDoes Temperature sensor connection wire ofOutdoor Unit properly connect?YesIs Outdoor Unit Temperature sensor resistancevalue normal?YesIs deviations of the Indoor Unit Temperaturesensors, less than 10 ?CompleteConfirmation andMeasuresNo Replace sensor[DischargeTemperature sensorresistance value]Temperature(Resistance(Ku)706050403020100-102.23.04.25.88.312.118.027.343.0