Daikin FTKS20CVMB(9) Service Manual

Contents

Daikin FTKS20CVMB(9) Service Manual Manual pdf 126 page image

SiENBE04-512A TroubleshootingService Diagnosis 1174.14 Position Sensor AbnormalityRemote ControlDisplayH6Method 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 10 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.136Replace the outdoor unitPCB.Replace the outdoor unitPCB.Reconnect as specified.∗ Inverter checkerPart No.: 1225477Correct the power supply orreplace the outdoor unitPCB.Replace the compressor.(R3041)CautionBe sure to turn off power switch before connect or disconnect connector,or parts damage may be occurred.Normal NONONOYESYESNOYESYESAny LED off?DC290~380V?Electricalsor compressor harnessesconnected asspecified?Check the electrolytic capacitorvoltage.Check with the inverter checker (∗).Turn off the power. Disconnect theharnesses U, V and W.Check No. 13Check for short-circuit.