SiUS041501E TroubleshootingService Diagnosis 744.11 Compressor LockError Code E6Method of ErrorDetectionA compressor lock is detected by the current waveform generated when applying high-frequencyvoltage to the motor.Error DecisionConditions If the error repeats, the system is shut down. Reset condition: Continuous run for about 11 minutes without any other errorSupposedCauses Closed stop valve Compressor locked Disconnection of compressor harnessTroubleshootingCheck No.12Refer to P.93Check No.15Refer to P.95Turn off the power. Disconnect theharnesses U, V, and W.(R21067)CautionNOYESYESNONOYESNOYESCheck No.15Check with the inverter analyzer.Turn off the power and reconnectthe harnesses. Turn on the poweragain and restart the system.(Precaution before turning on the power again)Make sure the power has been off for at least 30 seconds.Correct the power supply orreplace the outdoor unitPCB (main PCB).Open the stop valve.∗ Inverter analyzer:RSUK0917CReplace the compressor.Replace the compressor.Check the electronicexpansion valve coil.Go to Check No. 12.Any LED off?Stop valve closed?Emergencystop without compressorrunning?System shutdown after errors repeatedseveral times?Be sure to turn off the power switch before connecting or disconnectingconnectors, or parts may be damaged.
