32THE AIR FILTERCaring for the air filterThe air filter should be cleaned about every 100 hours. If the lamp indicator andtemp indicator blink red simultaneously, or a message prompts you to clean the airfilter when you turn on the unit, the filter needs to be cleaned. (See "RelatedMessages" ( ) and "Regarding the Indicator Lamps" ( ) for details.)13Turn off the projector, and unplug the power cordInsert the air filterSlowly turn the projector so that the top is facing up2 After making sure that theprojector hascooled adequately,slowly flip over the projector, sothat the bottom is facing up57 Turn on the projector, and use the menu to reset the filtertimer• To reset the air filter timer, from the OPTION menu, select FILTER TIME.Air Filter6Remove the air filterAir Filter4 Clean the air filter andventilation openingswith a vacuum cleaner Ventilationopenings