LG CT18F NQ0 User Manual

Part 4 Trouble Shooting
- 76 -
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All rights reserved. Only training and service purposes.
Purpose
Judgment of the fault of the
compressor.
Items for checking
1.
Measurement of insulation resistance
between the compressor and panel.
2. Measurement of phase resistance.
3. Wiring Check.
■ How to check the compressor wiring error
Check whether the PCB
wires and compressor wires
are connected in the same
colors.
Check whether the PCB
wires and compressor wires
are connected in the same
colors.
Y
Y (Yellow)
B (Blue)
R (Red)
Y
B
B
R
R
[Picture of normal compressor wiring]
[Picture of normal compressor wiring]
Check whether the compressor
wires are properly connected
with U, V, and W.
❈ The wiring direction is CCW.
(counter clock wise)
V (Blue)
U
(Red)
W
(Yellow)
Y (Yellow)
B (Blue)
R (Red)

LG CT18F NQ0 Specifications

General

Brand	LG
Model	CT18F NQ0
Category	Air Conditioner
Language	English