Lennox EL18KSLV Error Codes
Heat pump · Split & Multi-Split
- 1 EEPROM malfunction
- 10 Outdoor defrosting temperature sensor Te abnormal
- 11 Suction temperature sensor Ts abnormal
- 12 Outdoor ambient temperature sensor Ta abnormal
- 13 Discharging temperature sensor Tdabnormal
- 16 Lack of refrigerant or discharging pipe blocked
- 17 4-way vavle converse abnormal
- 18 Compressor motor desynchronizing
- 2 Compressor drive module hardware over current
- 20 DC voltage or AC voltage low
- 23 Temperature too high for compressor drivermodule
- 24 Compressor overcurrent -main board
- 25 Compressor momentary overcurrent -compressor module inverter side
- 26 Compressor drive module power supply failureorMCUabnormalreset
- 27 Current sampling circuit fault of compressordrivemodule
- 3 Compressor drive module AC input over current
- 39 Outdoor unit mid-condenser temp. sensor TC abnormal
- 4 Communication abnormal with compressor drive module
- 42 High pressure switch abnormal
- 43 Low pressure switch abnormal
- 44 Outdoor condenser temperature TC too high protection
- 45 System low pressure protection
- 46 Compressor driver module heat sink sensorabnormal
- 5 Compressor overload -drive module
- 51 High pressure sensor malfunction
- 6 DC voltage or AC voltage high
- 8 Discharge temperature too high protection
- 9 DC fan motor abnormal
- LE Pattern error
Reference only. Confirm against the manual for your exact model. Data release 105f66ecb9e96e5dc473025d.