Transcription of Service Manual 9. Troubleshooting
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Service Manual 9. Troubleshooting
23 Installation and MaintenanceService Manual9. Malfunction IndicatorThe error code will be displayed on the wired controller and the main board of the outdoor meaning of each error, as shown in table of malfunctionThe indicator displayIndoor displayYellow lightRed lightGreen lightCompressor runsFlash onceDefrostFlash twiceH1 Anti-freezing protectionFlash 3 timesE2 IPM protectionFlash 4 timesH5AC over-current protectionFlash 5 timesE5 Over-burden protectionFlash 6 timesH4 Compressor exhaust high temperature protectionFlash 7 timesE4 Compressor overload protectionFlash 8 timesH3 Power protectionFlash 9 timesL9 EEPROM reads and write protectionFlash 11 timesLow PN voltage protectionFlash 12 timesPLOver voltage protection for PNFlash 13 timesPHPFC protectionFlash 14 timesHCPFC module temperature protectionFlash 15 timesoELow pressure protectionFlash 17 timesE3 High pressure protectionFlash 18 timesE1 Limit/decline frequency(electric current)Flash 1 timesFrequency limit(exhaust)Flash 2 timesFrequency limit(Over-burden)
50 Unit D freeze protection ... compressor and thecopper pipe Malfunction is eliminated End If the wire of compressor is connected ... 3. if the pressure of the system is too high; 4. if the refrigerant is too much which causes the high level of pressure; Yes Yes Yes Yes Yes No No No No No. 26 Installation and Maintenance
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