LG MULTI V Installation Manual page 100
R410a refrigerant
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Also See for MULTI V:
- Service manual (147 pages) ,
- Manual (104 pages) ,
- User manual (97 pages)
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Test Run
Display
1 Master Outdoor Unit Constant Speed
Compressor Fault
Slave1 Outdoor Unit Constant Speed
1 7 3
2
Compressor Fault
Slave2 Outdoor Unit Constant Speed
3
Compressor Fault
Master outdoor unit rated speed 2 con-
1
denser over-current
Slave1 outdoor unit rated speed 2 con-
1 7 4
2
denser over-current
Slave2 outdoor unit rated speed 2 con-
3
denser over-current
Master outdoor unit Main Board Main-
1
Sub Micom communication error
Slave1 outdoor unit Main Board Main-
1 8 2
2
Sub Micom communication error
Slave2 outdoor unit Main Board Main-
3
Sub Micom communication error
Excessive increase of Master Outdoor
1
Unit Fan PCB Heat Sink Temperature
2 Excessive increase of Slave1 Outdoor
1 9 3
Unit Fan PCB Heat Sink Temperature
3 Excessive increase of Slave2 Outdoor
Unit Fan PCB Heat Sink Temperature
1 Master Outdoor Unit Fan PCB Heat Sink
Temperature Sensor Error
2 Slave1 Outdoor Unit Fan PCB Heat Sink
1 9 4
Temperature Sensor Error
3 Slave2 Outdoor Unit Fan PCB Heat Sink
Temperature Sensor Error
100
Outdoor Unit
Title
Comp locking, Check Valve leakage, comp dielectric break
down at Master Outdoor Unit
Comp locking, Check Valve leakage, comp dielectric at
Slave1 Outdoor Unit
Comp locking, Check Valve leakage, comp dielectric at
Slave2 Outdoor Unit
Master Outdoor Unit rated speed 2 condenser burned /
locked or fault by over-current
Slave1 Outdoor Unit rated speed 2 condenser burned /
locked or fault by over-current
Slave2 Outdoor Unit rated speed 2 condenser burned /
locked or fault by over-current
Master Outdoor Unit Main Board Main-Sub Micom commu-
nication failed
Slave1 Outdoor Unit Main Board Main-Sub Micom commu-
nication failed
Slave2 Outdoor Unit Main Board Main-Sub Micom commu-
nication failed
Master Outdoor Unit Fan Inverter PCB Temperature is
Over 95°C
Slave1 Outdoor Unit Fan Inverter PCB Temperature is
Over 95°C
Slave2 Outdoor Unit Fan Inverter PCB Temperature is
Over 95°C
Master Outdoor Unit Fan PCB Heat Sink Temperature
Sensor open or short
Slave1 Outdoor Unit Fan PCB Heat Sink Temperature
Sensor open or short
Slave2 Outdoor Unit Fan PCB Heat Sink Temperature
Sensor open or short
Cause of Error
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