LG ARUN80LN3 Installation Manual page 103

Display
Master Outdoor Unit Faulty IPM
1
Temperature Sensor
Slave1 Outdoor Unit Faulty IPM
2
Temperature Sensor
4 9
Slave2 Outdoor Unit Faulty IPM
3
Temperature Sensor
Slave3 Outdoor Unit Faulty IPM
4
Temperature Sensor
Omitting connection of R, S, T
1
power of Master Outdoor Unit
Omitting connection of R, S, T
2
power of Slave1 Outdoor Unit
5 0
Omitting connection of R, S, T
3
power of Slave2 Outdoor Unit
Omitting connection of R, S, T
4
power of Slave3 Outdoor Unit
Excessive capacity of indoor units
5 1 1
Transmission error : inverter
1
PCB → Main PCB
Transmission error : inverter
2
PCB → Main PCB
5 2
Transmission error : inverter
3
PCB → Main PCB
Transmission error : inverter
4
PCB → Main PCB
Transmission error : indoor unit →
5 3 1
main PCB of Outdoor Unit
Reverse connection of R, S, T
1
power of Master Outdoor Unit
Reverse connection of R, S, T
2
power of Slave1 Outdoor Unit
5 4
Reverse connection of R, S, T
3
power of Slave2 Outdoor Unit
Reverse connection of R, S, T
4
power of Slave3 Outdoor Unit
Master Outdoor Unit
1 Communication Error with Inverter
Controller
Slave1 Outdoor Unit
2
Communication Error with Inverter
Controller
5 7
Slave2 Outdoor Unit
3
Communication Error with Inverter
Controller
Slave3 Outdoor Unit
4 Communication Error with Inverter
Controller
Error of series installation
5 9 1
Title
Master Outdoor Unit IPM Temperature Sensor
short/open
Slave1 Outdoor Unit IPM Temperature Sensor
short/open
Slave2 Outdoor Unit IPM Temperature Sensor
short/open
Slave3 Outdoor Unit IPM Temperature Sensor
short/open
Omitting connection of Master outdoor unit
Omitting connection of Slave1 Outdoor Unit
Omitting connection of Slave2 Outdoor Unit
Omitting connection of Slave3 Outdoor Unit
Excessive connection of indoor units compared to
capacity of Outdoor Unit
Failing to receive inverter signal at main PCB of Master
Outdoor Unit
Failing to receive inverter signal at main PCB of Slave1
Outdoor Unit
Failing to receive inverter signal at main PCB of Slave2
Outdoor Unit
Failing to receive inverter signal at main PCB of Slave3
Outdoor Unit
Failing to receive indoor unit signal at main PCB of
Outdoor Unit .
Reverse connection or omitting connection of R, S, T
power of Master Outdoor Unit
Reverse connection or omitting connection of R, S, T
power of Slave1 Outdoor Unit
Reverse connection or omitting connection of R, S, T
power of Slave2 Outdoor Unit
Reverse connection or omitting connection of R, S, T
power of Slave3 Outdoor Unit
Master Outdoor Unit Controller part cannot receive
inverter control signals (usually happens after on-
boarding)
Slave1 Outdoor Unit Controller part cannot receive
inverter control signals (usually happens after on-
boarding)
Slave2 Outdoor Unit Controller part cannot receive
inverter control signals (usually happens after on-
boarding)
Slave3 Outdoor Unit Controller part cannot receive
inverter control signals (usually happens after on-
boarding)
In the case of installing smaller outdoor unit as master
unit
Test Run
Cause of Error
Installation Manual 103