LG MULTI V Series Installation Manual page 30
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Also See for MULTI V Series:
- Owner's manual (266 pages) ,
- Engineering manual (203 pages) ,
- Installation manual (27 pages)
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Outdoor Unit Inverter Compressor1 High Discharge
3
2
*
Temperature
3
4
*
High Pressure of Outdoor Unit
3
5
*
Low Pressure of Outdoor Unit
3
6
*
Outdoor Unit Low Compression Ratio Limited
4
0
*
Outdoor Unit Inverter Compressor CT Sensor Fault
Outdoor Unit Inverter Compressor1 Discharge
4
1
*
Temperature Sensor Fault
4
2
*
Outdoor Unit Low Pressure Sensor Fault
4
3
*
Outdoor Unit High Pressure Sensor Fault
4
4
*
Outdoor Unit Air Temperature Sensor Fault
Outdoor Unit Heat Exchanger Temperature Sensor
4
5
*
(Front side) Fault
4
6
*
Outdoor Unit Suction Temperature Sensor Fault
4
9
*
Outdoor Unit IPM Temperature Sensor Fault
5
0
*
Omitting connection of R, S, T power of Outdoor Unit
5
1
*
Excessive capacity of indoor units
Communication error : inverter PCB ' Main PCB
5
2
*
Communication error : indoor unit ' Main PCB of
5
3
*
Outdoor Unit
Communication error : Main PCB ' inverter PCB
5
7
*
6
0
*
Inverter PCB EEPROM Error of Master Outdoor Unit
6
2
*
Outdoor Unit Inverter Heatsink High Temperature
Outdoor Unit Inverter Heatsink Temperature Sensor
6
5
*
Fault
6
7
*
Outdoor Unit Fan Lock
7
1
*
Converter CT Sensor Error of Outdoor Unit
8
6
*
Outdoor Unit Main PCB EEPROM Error
1
0
6
*
Master Outdoor Unit FAN IPM Fault Error
Master Outdoor Unit Liquid pipe Temperature Sensor
1
1
3
*
Error
Failure of operation mode conversion at Outdoor Unit
1
5
1
*
Outdoor Unit
Title
Cause of Error
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
Outdoor Unit IPM 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
Restriction of Outdoor Unit
Converter CT Sensor open or short of Outdoor Unit
Communication Fail Between Outdoor Unit Main MICOM and
EEPROM or omitting EEPROM
Instant Over Current at Master Outdoor Unit Fan IPM
Liquid pipe temperature sensor of Master Outdoor Unit is open or
short
Failure of operation mode conversion at Outdoor Unit
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