LG Multi V ARUN***LM3 Series Installation Manual page 66

Test Run
Display
Outdoor unit Input Voltage High/ Low
2 5 1
Voltage
Outdoor unit Inverter Compressor Start
2 6 1
Failure
Outdoor unit Inverter DC link High
2 8 1
Voltage
Outdoor unit Inverter Compressor Over
2 9 1
Current
Outdoor unit Constant Speed Compressor2
3 0 1
High Discharge Temperature
Outdoor unit Inverter Compressor High
3 2 1
Discharge Temperature
Outdoor unit Constant Speed
3 3 1
Compressor1 High Discharge Temperature
3 4 1 High Pressure of Outdoor Unit
3 5 1 Low Pressure of Outdoor unit
Outdoor unit Low Condensing Ratio
3 6 1
Limited
Outdoor unit Inverter Compressor CT
4 0 1
Sensor Fault
Outdoor unit Inverter Compressor
4 1 1
Discharge Temperature Sensor Fault
4 2 1 Outdoor unit Low Pressure Sensor Fault
4 3 1 Outdoor unit High Pressure Sensor Fault
Outdoor unit Air Temperature Sensor
4 4 1
Fault
Outdoor unit Heat Exchanger
4 5 1
Temperature Sensor (Front side) Fault
Outdoor unit Suction Temperature Sensor
4 6 1
Fault
Outdoor unit Constant Speed Compressor1
4 7 1
Discharge Temperature Sensor Fault
Outdoor unit Constant Speed Compressor2
4 8 1
Discharge Temperature Sensor Fault
66
Solo
Title
Outdoor Unit
- Heat Pump
Cause of Error
Outdoor unit input voltage is over 487V or below 270V
The First Start Failure by Outdoor unit Inverter
Compressor Abnormality
System is turned off by Outdoor unit DC Voltage Over
Charging
Outdoor unit Inverter Compressor Fault OR Drive Fault
System is turned off by Outdoor Uunit Constant Speed
Compressor2 High Discharge Temperature
System is turned off by Outdoor unit Inverter Compressor
High Discharge Temperature
System is turned off by Outdoor Uunit Constant Speed
Compressor1 High Discharge Temperature
System is turned off by excessive increase of high pressure
of Outdoor unit
System is turned off by excessive decrease of low pressure
of Outdoor unit
Outdoor unit stayed under low condensing limit for 3 min-
utes
Outdoor unit Inverter Compressor CT Sensor open or short
Outdoor unit Inverter Compressor Discharge Temperature
Sensor open or short
Outdoor unit Low Pressure Sensor open or short
Outdoor unit High Pressure Sensor open or short
Outdoor unit Air Temperature Sensor open or short
Outdoor unit Heat Exchanger Temperature Sensor(Front
side) open or short
Outdoor unit Suction Temperature Sensor open or short
Outdoor unit Constant Speed Compressor1 Discharge
Temperature Sensor open or short
Outdoor unit Constant Speed Compressor 2 Discharge
Temperature Sensor open or short