Troubleshooting SiENBE12-620236 Service Diagnosis5.19 Position Sensor Abnormality H6remote controlDisplayH6Outdoor Unit LEDDisplayA 5 1 4 2 4 3 1 4 1Method ofMalfunctionDetectionA compressor startup failure is detected by checking the compressor running condition throughthe position detection circuit.MalfunctionDecisionConditions The compressor fails to start in about 15 seconds after the compressor run command signalis sent. Clearing condition: Continuous run for about 5 minutes (normal) The system will be shut down if the error occurs 16 times.SupposedCauses Compressor relay cable disconnected Compressor itself defective Outdoor unit PCB defective Stop valve closed Input voltage out of specificationTroubleshootingCheck No.13Refer to P.259(R5145)CautionBe sure to turn off power switch before connect or disconnect connector,or parts damage may be occurred.Normal NONONOYESYESNOYESAny LED off?DC320±30V?Electricalsor compressor harnessesconnected asspecified?Check the electrolytic capacitorvoltage.Turn off the power. Disconnect theharnesses U, V and W.Check No. 13Check for short-circuit.Replace the outdoor unitPCB, outdoor unit fan.Replace the outdoor unitPCB.Reconnect as specified.Correct the power supplyor replace the outdoorunit PCB.Replace the compressor.
