Troubleshooting Si04-60490 Service Diagnosis4.12 Compressor LockRemoteControllerDisplayE6Method ofMalfunctionDetectionA compressor lock is detected by checking the compressor running condition through theposition detection circuit.MalfunctionDecisionConditions The system judges the compressor lock, and stops due to over current. The system judges the compressor lock, and cannot operation with position detection within15 seconds after start up. The system will be shut down if the error occurs 16 times. Clearing condition: Continuous run for about 10 minutes (normal)SupposedCauses Compressor locked Compressor harness disconnectedTroubleshootingNote: If the model doesn’t have SPM, replace the outdoor unit PCB.Turn off the power. Disconnect theharnesses U, V and W.∗ Inverter checkerPart No.: 1225477Correct the power supply orreplace the SPM.(Replace the outdoor unitPCB.)Replace the compressor.Check the electronicexpansion valve.Replace it as required.Replace the compressor.(R2842)CautionBe sure to turn off power switch before connect or disconnect connector,or parts damage may be occurred.NOYESYESSystem shutdown after errors repeatedseveral times?NONONormal?YESEmergency stopwithout compressorrunning?Check with the inverter checker (∗).Turn off the power and reconnectthe harnesses. Turn on the poweragain and get the system restarted.
