LG Multi V Installation Manual

82 Outdoor Unit
Test Run
How to Cope with Test Run Abnormality
The phenomena from main component failure
Compressor
Outdoor
fan
Outdoor
EEV
Not operating
Stop during running
Abnormal noise
during running
High pressure error
at cooling
Heating failure, fre-
quent defrosting
No operating sound
at applying power
Heating failure,
frozen outdoor heat
exchanger part
Low pressure error
or discharge temper-
ature error
Motor insulation broken
Strainer clogged
Oil leakage
Motor insulation failure
R-S-T misconnection
Motor failure,
bad ventilation around
outdoor heat exchanger
Bad connector contact
Coil failure
EEV clogged
EEV clogged
Check resistance between terminals and
chassis
Change strainer
Check oil amount after opening oil port
Check resistance between terminals and
chassis
Check compressor R-S-T connection
Check the outdoor fan operation after being
turned the outdoor units off for some time.
Remove obstacles around the outdoor units
Check connector
Check resistance between terminals
Service necessary
Service necessary
Component Phenomenon Cause Check method and Trouble shooting
When system fault occurs, the error code is displayed at indoor unit display or remote control display,
the trouble shooting guide is in the service manual
Add Note : For detailed information, please refer Multi V Troubleshooting Guide Book

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)