LG A4UH306FA0, Owner'S Manual

28 Multi Type 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
odor. 

It seems that condensation
is leaking from the air
conditioner.

Air conditioner does not
operate for about 3 minutes
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

the walls, carpet, furniture, or cloth items in the
room.

• Check the drain hose is connected tight or if

indoor unit is installed even.

• This is the protector of the mechanism.
• Wait about 3 minutes and operation will begin.
• About 3 minutes delay is applied to protect

compressor from frequenty on/off.

• Is the air filter dirty? See air filter cleaning

instructions.

• Has the temperature been set correctly?

• Are the indoor unit's air inlet or outlet vents

obstructed?

• For a noise that sounds like water flowing.

-This is the sound of refrigerant flowing inside

the air conditioner unit.

• 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.
due to changes of temperature.

11,14

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-

-

-

22~26

11,14

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7

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