LG multi V PLUS Service Manual page 259

Display
Discharge temperature of Main
Outdoor constant speed compressor
1 0 0
1 of Sub1 Outdoor Unit
Discharge temperature of Main
Outdoor constant speed compressor
1 0 1
2 of Sub1 Outdoor Unit
Discharge temperature of Main
Outdoor constant speed compressor
1 0 2
1 of Sub2 Outdoor Unit (3 units)
Discharge temperature of Main
Outdoor constant speed compressor
1 0 3
2 of Sub2 Outdoor Unit (3 units)
Transmission related error between
Outdoor Units (Sub1 Outdoor Unit
1 0 4
Main Outdoor Unit)
Transmission related error Main
Outdoor Unit fan driving (fan
1 0 5
Outdoor Unit)
Occurrence of over-current at Main
1 0 6
Outdoor Unit fan motor (IPM Fault)
Low Voltage of Main Outdoor Unit fan
1 0 7
motor
Transmission related error of Main
Outdoor Unit fan motor
1 0 8
(Outdoor Unit
High Pressure switch of Sub1 Outdoor
1 0 9
Unit
Reverse connection of the R, S, T
1 1 0
Power line of Sub1 Outdoor Unit
Transmission related error between
1 1 1
Outdoor Units (Main Outdoor Unit
Sub1 Outdoor Unit)
Main Outdoor Unit liquid pipe
1 1 3
temperature sensor
Main Outdoor Unit excessive cooling
1 1 4
inlet temperature sensor
Main Outdoor Unit excessive cooling
1 1 5
outlet temperature sensor
Sub1 Outdoor Unit High Pressure
1 1 6
sensor
Sub1 Outdoor Unit Low Pressure
1 1 7
sensor
Sub1 Outdoor Unit air temperature
1 1 8
sensor
Sub1 Outdoor Unit suction
1 2 0
temperature sensor
Sub1 Outdoor Unit constant speed
1 2 1
compressor1 discharge temperature
sensor
Title
Compressor Off by excessive increase of discharge tempera-
ture of constant speed compressor1 of the Sub1 Outdoor
Unit
Compressor Off by excessive increase of discharge tempera-
ture of constant speed compressor1 of the Sub2 Outdoor
Unit
Compressor Off by excessive increase of discharge tempera-
ture of constant speed compressor1 of the Sub2 Outdoor
Unit (3 units)
Compressor Off by excessive increase of discharge tempera-
ture of constant speed compressor2 of the Sub2 Outdoor
Unit (3 units)
If failing to receive signal of the Sub1 Outdoor Unit from the
Main Outdoor Unit control part
If failing to receive signal of the fan driving control part from
the Main Outdoor Unit control part
Occurrence of over-current at Main Outdoor Unit fan motor
(IPM Fault)
Occurrence of Low Voltage of Main Outdoor Unit fan motor
If failing to receive signal of the Main Outdoor Unit control
part from the fan driving control part
fan)
Operation of High Pressure switch due to increase of Sub1
Outdoor Unit High Pressure increase
Misconnection or disconnection of R, S, T Power line of Sub1
Outdoor Unit
If failing to receive signal of the Main Outdoor Unit control
part from the Sub1 Outdoor Unit control part
Open or short of Main Outdoor Unit liquid pipe temperature
sensor
Open or short of Main Outdoor Unit excessive cooling inlet
temperature sensor
Open or short of Main Outdoor Unit excessive cooling outlet
temperature sensor
Open or short of Sub1 Outdoor Unit High Pressure sensor
Open or short of Sub1 Outdoor Unit Low Pressure sensor
Open or short of Sub1 Outdoor Unit air temperature sensor
Open or short of Sub1 Outdoor Unit suction temperature
sensor
Open or short of Sub1 Outdoor Unit constant speed com-
pressor1 discharge temperature sensor
Self-diagnosis function
Cause of Error
Service Manual 259