LG ARNU18GS5L1 [12/14] Maintenance and service

12 Indoor Unit

Maintenance and Service

Before performing any maintenance, turn off the main power to the system.

Never use any of the followings:

• Water hotter than 40°C.

Could cause deformation and/or discoloration.

• Volatile substances.

Could damage the surfaces of the air conditioner.

Air Filters

The air filters behind the front panel / grill should be checked and cleaned once in

every 2 weeks or more often if necessary. To remove the filters see the self

explanatory diagrams for each model type. Clean the filters with a vacuum cleaner

or warm soapy water. If dirt is not easily removed, wash with a solution of

detergent in luke warm water. Dry well in shade after washing and reinstall the

filters back in place.

Plasma Filters

The plasma filters behind the air filter should be checked and cleaned once in every 3

months or more often if necessary. To remove the filters see the self explanatory

diagrams for each model type. Clean the filters with a vacuum cleaner. If it is dirty

wash it with water and dry well in shade an install back in place.

Deodorizer Filters

Remove the deodorizer filters behind the air filter and expose them in direct

sunlight for 2 hours.

And then insert these filters into original position.

Removal of Filters

Two different methods to open the front panel based on types of air conditioner as below ;

Type 1: Open the front panel as shown.

Then pull the filter tab slightly forward to remove the air filter.

After removing the air filter remove the plasma and deodorizer filter by slightly pulling forward.

Plasma filter

Deodorizer

filter

Type 2: Pull the front panel from both sides as shown.

Then pull the filter tab slightly forward to remove the filter. After removing the air filter remove

the plasma and triple deodorizer filter by slightly pulling forward.

Plasma filter

Deodorizer

filter

Don't touch this plasma filter within 10 seconds after opening the inlet grille, it may cause an electric shock.