LG Multi V Service Manual

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All rights reserved. Only training and service purposes.
1. The phenomena from main component failure .............................. 89
2.
Checking Method for Key Components ..........................................90
2.1 Compressor ........................................................................................90
2.2 Fan Motor ............................................................................................91
2.3 Electronic Expansion Valve...............................................................92
2.4 Inverter IGBTM Checking Method.....................................................95
2.5 Pressure Sensor(High/Low Pressure Sensor) ......................................96
2.6 Outdoor Fan .............................................................................................96
2.7 4 way Valve...............................................................................................97
2.8 Temperature Sensor ................................................................................98
2.9 Fan lock and Fan IPM Check ...................................................................98
3. Self-diagnosis function ...............................................................100
Trouble shooting guide

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)