LG MULTI V S ARUV060GSD0 Installation Manual page 64

ELECTRICAL WIRING
64
Display
Outdoor Unit Inverter Compressor Start
2 6
Failure
2 7 PSC/PFC Fault Error
Outdoor Unit Inverter Compressor Over
2 9
Current
Outdoor Unit Inverter Compressor1 High
3 2
Discharge Temperature
3 4 High Pressure of Outdoor Unit
3 5 Low Pressure of Outdoor Unit
Outdoor Unit Low Compression Ratio
3 6
Limited
Outdoor Unit Inverter Compressor CT
4 0
Sensor Fault
Outdoor Unit Inverter Compressor1 Dis-
4 1
charge Temperature Sensor Fault
4 2 Outdoor Unit Low Pressure Sensor Fault Outdoor Unit Low Pressure Sensor open or short
4 3 Outdoor Unit High Pressure Sensor Fault Outdoor Unit High Pressure Sensor open or short
Outdoor Unit Air Temperature Sensor
4 4
Fault
Outdoor Unit Heat Exchanger Tempera-
4 5
ture Sensor (Front side) Fault
Outdoor Unit Suction Temperature Sen-
4 6
sor Fault
Outdoor Unit Faulty Condenser Out-pipe
4 8
sensor
Outdoor Unit Faulty IPM Temperature
4 9
Sensor
Omitting connection of R, S, T power of
5 0
Outdoor Unit
5 1 Excessive capacity of indoor units
Communication error : inverter PCB →
5 2
Main PCB
Communication error : indoor unit → Main
5 3
PCB of Outdoor Unit
Communication error : Main PCB →
5 7
inverter PCB
Title
The First Start Failure by Outdoor Unit Inverter Com-
pressor Abnormality
Instant Over Current at Outdoor Unit
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 Tem-
perature 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 Condenser Out-pipe sensor short/open
Outdoor Unit IPM Temperature Sensor short/open
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 Out-
door 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
Cause of Error