LG multi V PLUS Service Manual

Service Manual 261
■ Please refer to trouble shooting guide in service manual for each error title
CAUTION
In case that the control box is opened and before checking electrical parts, it should be checked that
the LED 01Y (Refer to next page) turned off (wait 3 minutes after main power OFF), otherwise, it may
cause electrical shock.
Compressor Off by excessive reduction of Sub2 Outdoor Unit
Low Pressure
Compressor Off by excessive increase of Sub2 Outdoor Unit
High Pressure
Compressor Off by excessive reduction of Sub2 Outdoor Unit
Low Pressure
Input voltage of Sub1 Outdoor Unit is more than 487V or less
than 270V
Open or short of outdoor voltage sensor of Sub1 Outdoor
Unit
Input voltage of Sub2 Outdoor Unit is more than 487V or less
than 270V
Open or short of outdoor voltage sensor of Sub2 Outdoor
Unit
Pressure unbalance between Outdoor Units
Low Pressure of Sub1 Outdoor Unit
High Pressure of Sub2 Outdoor Unit
(3Units)
Low Pressure of Sub2 Outdoor Unit
(3Units)
Short voltage/excess voltage of Sub1
Outdoor Unit
Voltage sensor of Sub1 Outdoor Unit
Short voltage/excess voltage of Sub2
Outdoor Unit (3Units)
Voltage sensor of Sub2 Outdoor Unit
(3Units)
Failure of operation mode conversion
Display Title Cause of Error
144
145
146
147
148
149
150
151
Outdoor Unit related error
Self-diagnosis function

LG multi V PLUS Specifications

General

Brand	LG
Model	multi V PLUS
Category	Air Conditioner
Language	English