LG Multi V Installation Manual

100 Outdoor Unit
Test Run
Display Title Cause of Error
1 7 3
1
Master Outdoor Unit Constant Speed
Compressor Fault
Comp locking, Check Valve leakage, comp dielectric break
down at Master Outdoor Unit
2
Slave1 Outdoor Unit Constant Speed
Compressor Fault
Comp locking, Check Valve leakage, comp dielectric at
Slave1 Outdoor Unit
3
Slave2 Outdoor Unit Constant Speed
Compressor Fault
Comp locking, Check Valve leakage, comp dielectric at
Slave2 Outdoor Unit
1 7 4
1
Master outdoor unit rated speed 2 con-
denser over-current
Master Outdoor Unit rated speed 2 condenser burned /
locked or fault by over-current
2
Slave1 outdoor unit rated speed 2 con-
denser over-current
Slave1 Outdoor Unit rated speed 2 condenser burned /
locked or fault by over-current
3
Slave2 outdoor unit rated speed 2 con-
denser over-current
Slave2 Outdoor Unit rated speed 2 condenser burned /
locked or fault by over-current
1 8 2
1
Master outdoor unit Main Board Main-
Sub Micom communication error
Master Outdoor Unit Main Board Main-Sub Micom commu-
nication failed
2
Slave1 outdoor unit Main Board Main-
Sub Micom communication error
Slave1 Outdoor Unit Main Board Main-Sub Micom commu-
nication failed
3
Slave2 outdoor unit Main Board Main-
Sub Micom communication error
Slave2 Outdoor Unit Main Board Main-Sub Micom commu-
nication failed
1 9 3
1
Excessive increase of Master Outdoor
Unit Fan PCB Heat Sink Temperature
Master Outdoor Unit Fan Inverter PCB Temperature is
Over 95°C
2
Excessive increase of Slave1 Outdoor
Unit Fan PCB Heat Sink Temperature
Slave1 Outdoor Unit Fan Inverter PCB Temperature is
Over 95°C
3
Excessive increase of Slave2 Outdoor
Unit Fan PCB Heat Sink Temperature
Slave2 Outdoor Unit Fan Inverter PCB Temperature is
Over 95°C
1 9 4
1
Master Outdoor Unit Fan PCB Heat Sink
Temperature Sensor Error
Master Outdoor Unit Fan PCB Heat Sink Temperature
Sensor open or short
2
Slave1 Outdoor Unit Fan PCB Heat Sink
Temperature Sensor Error
Slave1 Outdoor Unit Fan PCB Heat Sink Temperature
Sensor open or short
3
Slave2 Outdoor Unit Fan PCB Heat Sink
Temperature Sensor Error
Slave2 Outdoor Unit Fan PCB Heat Sink Temperature
Sensor open or short
Outdoor unit related error

LG Multi V Specifications

General

Type	VRF (Variable Refrigerant Flow)
Compressor Type	Scroll
Refrigerant	R410A
Energy Efficiency	High
Control System	Centralized and individual control options
Indoor Units	Multiple types available (e.g., ceiling cassette, wall-mounted, ducted)