Daikin F-Series Service Manual

Also see for 2MKS40FV1B: Service Manual Removal Procedure

Contents

Daikin F-Series Service Manual Manual pdf 148 page image

SiEN12-710A TroubleshootingService Diagnosis 1374.20 Output Over Current DetectionRemote ControlDisplayL5Method ofMalfunctionDetectionAn output over-current is detected by checking the current that flows in the inverter DC section.MalfunctionDecisionConditions" A position signal error occurs while the compressor is running." A speed error occurs while the compressor is running." An output over-current input is fed from the output over-current detection circuit to themicrocomputer." The system will be shut down if the error occurs 8 times." Clearing condition: Continuous run for about 11 minutes (normal)SupposedCauses" Over-current due to defective power transistor" Over-current due to wrong internal wiring" Over-current due to abnormal supply voltage" Over-current due to defective PCB" Error detection due to defective PCB" Over-current due to closed stop valve" Over-current due to compressor failure" Over-current due to poor installation condition