SiBE04-624 Main FunctionsFunction and Control 532.22 Wipe-clean Flat PanelIt wipes off dirt in an instant. The grill-less panel is easy to clean and can be dismounted easilyfor washing.Dismount the panel in the procedure as mentioned below, wipe it lightly with soft clothimpregnated with lukewarm water or cold neutral detergent solution and dry it in the shade.Note: If it is washes with use of polishing powder or scrubber, or in the water hotter than 40°C, itmay be scratched, discolored or deformed. Cautionz When mounting or dismounting the front panel, use a robust and stable stand and watchout your step.z Proceed to work while supporting the front panel securely by hand.z Do not use the water hotter than 40°C, benzin, gasoline, thinner or other volatiles,polishing powder or scrubber.z Make sure that the front panel is mounted securely.2.23 Filter Cleaning Indicator (Remote Controller)When the unit is operated for about 2 weeks (about 340 hours), the filter cleaning indicationappears to inform you that the time of maintenance comes.If the filter is left dirty, the power consumption increases by about 10%. It is recommended tomaintain it periodically for energy-saving operation. How to reset the filter cleaning indicator(R5115)(R5118)When the "FILTER LED RESET" button of the remotecontrol is kept pressed for about 2 sec. toward the air-conditioner main unit after maintenance of the filter, thefilter cleaning indication disappears.