Troubleshooting SiBE07-618_C70 Service Diagnosis4.10 Compressor LockRemoteControllerDisplayE6Method ofMalfunctionDetectionA compressor lock is detected by checking the compressor running condition through theposition detection circuit.MalfunctionDecisionConditions Judging from the current waveform generated when high-frequency voltage is applied to thecompressor. If the error repeats 16 times, the system is shut down. Reset condition: Continuous run for about 5 minutes without any other errorSupposedCauses Compressor locked Disconnection of compressor harnessTroubleshootingTurn off the power. Disconnect theharnesses U, V, and W.(R8065)CautionBe sure to turn off the power switch before connecting or disconnectingconnectors, or parts may be damaged.NOYESYESNONOYESCheck with the inverter checker (∗).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 PM1.(Replace the outdoor unitPCB.)∗ Inverter checkerPart No.: 1225477Replace the compressor.Replace it as required.Replace the compressor.Check the electronicexpansion valve.Normal?Emergencystop without compressorrunning?System shutdown after errors repeatedseveral times?
