Mitsubishi Split-System Heat Pump SLZ-KF15NA

Warning: Before you start cleaning, stop operation and turn OFF the power supply.

Grid-like icon appeared on the main unit?

If the grid-like icon appeared, it's time to clean the filter.

Is the filter especially dirty?

If the filter is especially dirty, it needs to be washed in lukewarm water.

Did you rinse off any detergent thoroughly and allow the filters to dry completely before putting them back into the unit?

Warning: Do not dry the filters in direct sunlight or by using a heat source, such as an electric heater: this may warp them.

Warning: Do not wash the filters in hot water (above 50°C, 122°F), as this may warp them.

Warning: Make sure that the air filters are always installed. Operating the unit without air filters can cause malfunction.

Caution: In removing the filter, precautions must be taken to protect your eyes from dust. Also, if you have to climb up on a stool to do the job, be careful not to fall. When the filter is removed, do not touch the metallic parts inside the indoor unit, otherwise injury may result.

Slide the levers on the intake grille in the direction indicated by the arrow and it should open.

Release the knob on the center edge of the intake grille and pull the filter forward to remove the filter.