LG USUW186K3A0 Owner's Manual page 20

MAINTENANCE
20
! CAUTION
• Turn off the power and unplug the power cord before you perform any maintenance; other-
wise it may cause electric shock.
• Never use water that is hotter than 40 °C when you clean the filters. It may cause deforma-
tion or discoloration.
• Never use volatile substances when you clean the filters. They may damage the surface of
the product.
• Do not wash the 3M filter with water, because the filter can be damaged(Optional)
!
NOTE
• The location and shape of the filters may differ, depending on the model.
• Make sure to clean the heat exchanger coils of the outdoor unit regularly, as dirt collected
in the coils may decrease the operational efficiency or increase energy costs.