LG MULTI VS AARUN040LSS5 Installation Manual page 74

ELECTRICAL WIRING
74
Display
Outdoor Unit Inverter Compressor
2 6 1
Start Failure
Outdoor Unit Inverter Compressor
2 9 1
Over Current
Outdoor Unit Inverter Compressor1
3 2 1
High Discharge Temperature
3 4 1 High Pressure of Outdoor Unit
3 5 1 Low Pressure of Outdoor Unit
Outdoor Unit Low Compression Ratio
3 6 1
Limited
Outdoor Unit Inverter Compressor CT
4 0 1
Sensor Fault
Outdoor Unit Inverter Compressor1
4 1 1
Discharge Temperature Sensor Fault
Outdoor Unit Low Pressure Sensor
4 2 1
Fault
Outdoor Unit High Pressure Sensor
4 3 1
Fault
Outdoor Unit Air Temperature
4 4 1
Sensor Fault
Outdoor Unit Heat Exchanger
4 5 1
Temperature Sensor (Front side) Fault
Outdoor Unit Suction Temperature
4 6 1
Sensor Fault
Omitting connection of R, S, T power
5 0 1
of Outdoor Unit
5 1 1 Excessive capacity of indoor units
Communication error : inverter PCB
5 2 1
→ Main PCB
Communication error : indoor unit →
5 3 1
Main PCB of Outdoor Unit
Communication error : Main PCB →
5 7 1
inverter PCB
Inverter PCB EEPROM Error of
6 0 1
Master Outdoor Unit
Outdoor Unit Inverter Heatsink High
6 2 1
Temperature
Outdoor Unit Inverter Heatsink
6 5 1
Temperature Sensor Fault
Title
The First Start Failure by Outdoor Unit Inverter
Compressor Abnormality
Outdoor Unit Inverter Compressor Fault OR Drive
Fault
Outdoor Unit Inverter Compressor1 High Discharge
Temperature
High Pressure of Outdoor Unit
Low Pressure of Outdoor Unit
Outdoor Unit Low Compression Ratio Limited
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
Omitting connection of outdoor unit
Excessive connection of indoor units compared to
capacity of Outdoor Unit
Failing to receive inverter signal at main PCB of
Outdoor Unit
Failing to receive indoor unit signal at main PCB of
Outdoor Unit.
Failing to receive signal main PCB at inverter PCB of
Outdoor Unit
Access Error of Inverter PCB of Outdoor Unit
System is turned off by Outdoor Unit Inverter
Heatsink High Temperature
Outdoor Unit Inverter Heatsink Temperature Sensor
open or short
Cause of Error