Daikin 2MXM50M Service Manual

Contents

Daikin 2MXM50M Service Manual Manual pdf 30 page image

ESIE16-02B | Part 2. Troubleshooting 2.2. Error based troubleshootingPage 30 4/04/17 | Version 1.1RA R32 Split & multi split M-Series2.2.2.10. “H0-00” – Compressor sensor system abnormality2.2.2.11. “H6-00” – Position detection sensor abnormalityFaulty outdoor unit main PCB. Check if the HAP LED is blinking in regu-lar intervals.Check if the correct spare part is installed.Check if the outdoor main PCB receivespower.Restore the power to the outdoor mainPCB.Replace outdoor main PCB when HAPLED is not blinking in regular intervals.Trigger Effect ResetDC voltage before compressor start-up isout of range (0.5~4.5 V).Unit will stop operating. Manual reset via user interface.DC voltage before compressor start-up isbelow 50 V.Unit will stop operating. Manual reset via user interface.Possible cause Check Corrective actionFaulty outdoor unit main PCB. Check if the HAP LED is blinking in regu-lar intervals.Check if the correct spare part is installed.Check if the outdoor main PCB receivespower.Restore the power to the outdoor mainPCB.Replace outdoor main PCB when HAPLED is not blinking in regular intervals.Faulty outdoor inverter PCB. Check outdoor inverter PCB.Check if the HAP LED is blinking in regu-lar intervals.Check if the correct spare part is installed.Restore the power to the outdoor inverterPCB.Replace the outdoor inverter PCB whenrequired.Faulty connection or wiring of the PCB's. Check the connections and the wiring ofthe PCB’s.Adjust connection or wiring whenrequired.Faulty or disturbance of the power supply(imbalance > 10%). Power drop. Short cir-cuit.Check if the power supply is conform withregulations. No fluctuations in frequency.Adjust power supply when required.Power reset via outdoor unit.Trigger Effect ResetCompressor fails to start within 15 sec-onds after the compressor run commandsignal is sent.Unit will not stop operating. Automatic reset after a continuous run of10 minutes.Unit will stop operating if the warningoccurs 8 times.Manual reset via remote controller.Possible cause Check Corrective actionFaulty compressor. Check compressor.Check connections and wiring of the com-pressor.Check expansion valve (liquid backissue).Check the refrigerant charge. Refer to thenameplate for correct charge.Replace compressor when required.Investigate reason of breakdown.Replace expansion valve when required.Fix possible leak.Faulty outdoor unit main PCB. Check if the HAP LED is blinking in regu-lar intervals.Check if the correct spare part is installed.Check if the outdoor main PCB receivespower.Restore the power to the outdoor mainPCB.Replace outdoor main PCB when HAPLED is not blinking in regular intervals.Possible cause Check Corrective action