Maintenance And Service; Indoor Unit - LG USNW122B4W2 Owner's Manual

Maintenance and Service

Before performing any maintenance, turn off the main power to the system, disconnect the circuit breaker and
unplug the power cord.

Indoor Unit

Clean the unit with a soft dry cloth. Do not use bleach or abrasives.
For inner cleaning, contact an Authorized Service Center or a dealer.
Do not use harsh detergent that causes corrosion or damage on the unit.
• Harsh detergent may also cause failure of product, fire, or electronic shock.
Never use any of these
• Water hotter than 40°C. It may cause deformation and
discoloration.
• Volatile substances. They may damage the surface 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.
3M Multi Protection Filter
3M multi protection filter should be located behind the front panel/grille and cleaned once in every months
with a vacuum cleaner.
But don't use water to clean the filter.
Replace filter once in every 6 months regularly.
Removal of Filters
Open the front panel as shown.
Then pull the filter tab slightly forward to remove the air filter.
Maintenance and Service
3M Multi Protection Filter
Owner's Manual 17