LG MC12AHB [20/21] Troubleshooting

20 Multi Air Conditioner

Maintenance and Service

Troubleshooting

Check the following points before requesting repairs or service.... If the fault persists, please contact your dealer or service center.

Case Explanation See page

The air conditioner does not

operate.

The room has a peculiar

after turning on.

Does not cool or heat

effectively.

The air conditioner

operation is noisy.

Remote Controller display is

faint, or no display at all.

Crack sound is heard.

• Check room temperature setting?

• Check if circuit breaker is on?

• Check that this is not a damp smell exuded by

room.

• About 3 minutes delay is applied to protect

compressor from frequenty on/off.

• Is the air filter dirty? See air filter cleaning

instructions.

• For a noise that sounds like the compressed

air releasing into atmosphere.

-This is the sound of the dehumidifying water

being processed inside the air conditioning

unit.

• Are the batteries depleted?

• Are the batteries inserted in the opposite (+)

and (-) directions?

• This sound is generated by the

expansion/constriction of the front panel, etc.