LG ARUN115DT2 Installation Manual page 78

Test Run
Display
Communication Error Between
1
Master Outdoor Unit and Other
Outdoor Unit
1 0 4
Communication Error Between
2
slave Outdoor Unit and Other
Outdoor Unit
Master Outdoor Unit Fan PCB
1
Communication Error
1 0 5
slave Outdoor Unit Fan PCB
2
Communication Error
Master Outdoor Unit FAN IPM
1
Fault Error
1 0 6
slave Outdoor Unit FAN IPM Fault
2
Error
Master Outdoor Unit Fan DC Link
1
Low Voltage Error
1 0 7
slave Outdoor Unit Fan DC Link
2
Low Voltage Error
Master Outdoor Unit Liquid pipe
1
Temperature Sensor Error
1 1 3
slave Outdoor Unit Liquid pipe
2
Temperature Sensor Error
Master Outdoor Unit Subcooling
1
Inlet Temperature Sensor Error
1 1 4
slave Outdoor Unit Subcooling
2
Inlet Temperature Sensor Error
Master Outdoor Unit Subcooling
1
Outlet Temperature Sensor Error
1 1 5
slave Outdoor Unit Subcooling
2
Outlet Temperature Sensor Error
Failure of operation mode conver-
1
sion at Master Outdoor Unit
1 5 1
Failure of operation mode conver-
2
sion at slave Outdoor Unit
Master Outdoor Unit Constant
1
Speed Compressor Fault
1 7 3
slave Outdoor Unit Constant
2
Speed Compressor Fault
Excessive increase of Master
Outdoor Unit Fan PCB Heat Sink
1
Temperature
1 9 3
Excessive increase of slave
Outdoor Unit Fan PCB Heat Sink
2
Temperature
Master Outdoor Unit Fan PCB
1
Heat Sink Temperature Sensor
Error
1 9 4
slave Outdoor Unit Fan PCB
2
Heat Sink Temperature Sensor
Error
78 78 Outdoor Unit Outdoor Unit
Title
Failing to receive Slave Unit signal at main PCB of
Master outdoor unit
Failing to receive master and other Slave Unit signal at
main PCB of slave outdoor unit
Failing to receive fan signal at main PCB of master
unit.
Failing to receive fan signal at main PCB of slave unit.
Instant Over Current at Master Outdoor Unit Fan IPM
Instant Over Current at slave Outdoor Unit Fan IPM
Master Outdoor Unit Fan DC Link Input Voltage is
under 380V
slave Outdoor Unit Fan DC Link Input Voltage is under
380V
Liquid pipe temperature sensor of Master outdoor unit
is open or short
Liquid pipe temperature sensor of slave outdoor unit is
open or short
Master Outdoor Unit Subcooling Inlet Temperature
Sensor open or short
slave Outdoor Unit Subcooling Inlet Temperature
Sensor open or short
Master Outdoor Unit Subcooling Outlet Temperature
Sensor open or short
slave Outdoor Unit Subcooling Outlet Temperature
Sensor open or short
Pressure unbalance between outdoor units
Pressure unbalance between outdoor units
Comp locking, Check Valve leakage, comp dielectric
break down at Master Outdoor Unit
Comp locking, Check Valve leakage, comp dielectric at
slave Outdoor Unit
Master Outdoor Unit Fan Inverter PCB Temperature is
Over 95°C
slave Outdoor Unit Fan Inverter PCB Temperature is
Over 95°C
Master Outdoor Unit Fan PCB Heat Sink Temperature
Sensor open or short
slave Outdoor Unit Fan PCB Heat Sink Temperature
Sensor open or short
Cause of Error