Troubleshooting SiBE041011EC87 Service Diagnosis4.19 Compressor System Sensor Abnormality4.19.1 RK(X)S60F3V1B, 71 ClassError Code H0Method of ErrorDetection The system checks the power supply voltage and the DC voltage before the compressorstarts. The system checks the compressor current right after the compressor starts.Error DecisionConditions The power supply voltage and the DC voltage is obviously low or high. The compressor current does not run when the compressor starts.SupposedCauses Disconnection of reactor Disconnection of compressor harness Defective outdoor unit PCB Defective compressorTroubleshootingConnect the reactorproperly.(R20419)NOYESConnect the compressorproperly.NOYESReplace the reactor.NOYESReplace the compressor orthe compressor relayharness.Restart the operation againand if the error occursagain, replace the outdoorunit PCB (main PCB).NOYESDisconnect the reactor from the outdoorunit PCB and measure the resistancevalue between reactor terminals withmultimeter.Disconnect the compressor relay harnessfrom the outdoor unit PCB and measurethe resistance value between the each 3terminals of the compressor withmultimeter.CautionBe sure to turn off the power switch before connecting or disconnectingconnectors, or parts may be damaged.10 Ω or lessbetween each terminal?Check the connection of thecompressor.Check the reactor.Check the compressor.Turn off the power.Check the connection of thereactor.Connection OK?Connection OK?10 Ω or less?
