LG MULTI V IV ARNU07GTU 2 Series Service Manual page 74

Self-diagnosis function
Display
Master Outdoor Unit Heat Exchanger
1
Temperature Sensor (Front side) Fault
Slave1 Outdoor Unit Heat Exchanger
2
Temperature Sensor (Front side) Fault
4 5
Slave2 Outdoor Unit Heat Exchanger
3
Temperature Sensor (Front side) Fault
Slave3 Outdoor Unit Heat Exchanger
4
Temperature Sensor (Front side) Fault
Master Outdoor Unit Suction
1
Temperature Sensor Fault
Slave1 Outdoor Unit Suction
2
Temperature Sensor Fault
4 6
Slave2 Outdoor Unit Suction
3
Temperature Sensor Fault
Slave3 Outdoor Unit Suction
4
Temperature Sensor Fault
Master Outdoor Unit Inverter Compressor2
1
Discharge Temperature Sensor Fault
Slave1 Outdoor Unit Inverter Compressor2
2
Discharge Temperature Sensor Fault
4 7
Slave2 Outdoor Unit Inverter Compressor2
3
Discharge Temperature Sensor Fault
Slave3 Outdoor Unit Inverter Compressor2
4
Discharge Temperature Sensor Fault
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 power
1
of Master Outdoor Unit
Omitting connection of R, S, T power
2
of Slave1 Outdoor Unit
5 0
Omitting connection of R, S, T power
3
of Slave2 Outdoor Unit
Omitting connection of R, S, T power
4
of Slave3 Outdoor Unit
Copyright ©2013 LG Electronics. Inc. All right reserved.
Only for training and service purposes
Title
Master Outdoor Unit Heat Exchanger Temperature
Sensor(Front side) open or short
Slave1 Outdoor Unit Heat Exchanger Temperature
Sensor (Front side) open or short
Slave2 Outdoor Unit Heat Exchanger Temperature
Sensor(Front side) open or short
Slave3 Outdoor Unit Heat Exchanger Temperature
Sensor(Front side) open or short
Master Outdoor Unit Suction Temperature Sensor
open or short
Slave1 Outdoor Unit Suction Temperature Sensor
open or short
Slave2 Outdoor Unit Suction Temperature Sensor
open or short
Slave3 Outdoor Unit Suction Temperature Sensor
open or short
Master Outdoor Unit Inverter Compressor2
Discharge Temperature Sensor open or short
Slave1 Outdoor Unit Inverter Compressor2
Discharge Temperature Sensor open or short
Slave2 Outdoor Unit Inverter Compressor2
Discharge Temperature Sensor open or short
Slave3 Outdoor Unit Inverter Compressor2
Discharge Temperature Sensor open or short
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
- 74 -
Cause of Error
LGE Internal Use Only