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Only for training and service purposes

LGE Internal Use Only

6) Troubleshooting CH22

Max. C/T

C/T

Internal circuit

Over current (14A )

Initial current error

Malfunction of compressor

Blocking of pipe

Low voltage input

Refrigerant, pipe length, blocked, …

Malfunction of current detection circuit.

(Open / Short)

The voltage of “C01N” Is 4.0Vdc(25A) .

Display

code

Title Cause of error Check point & Normal condition

Check Point

1. Check the power source.

2. Check the fan operation is right.

3. Check the current.

4. Check the install condition.

5. Check the internal circuit. (C/T, Diode, Resistor)

Troubleshooting Guide

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