54-ENGLISHCleaning and replacing the air filterIf the air filter becomes clogged with dust, the internal temperature of theprojector will rise, the TEMP indicator will illuminate and the projector’spower will turn off (the TEMP indicator will flash after the power is turned off).The air filter should be cleaned every 100 hours of use.% Replace the air filter, and theninstall the air filter cover.CleaningUse a vacuum cleaner to clean offany accumulated dust.Replacement procedure# Turn off the power anddisconnect the power cord.Be sure to disconnect the powercord by following the proceduregiven on page 26.$ Gently turn the projectorupside down, and then removethe air filter cover.NOTE:B If the dust cannot be cleanedby a vacuum cleaner, removethe air filter and soak it inwater, and then wash out thedust by hand. Be sure to installthe air filter after it has dried.B Do not use detergent whenwashing the air filter.B If the dust cannot be removedby cleaning, it is time toreplace the air filter. Pleaseconsult your dealer.Furthermore, if the lamp unit isbeing replaced, replace the airfilter at this time also.NOTE:B Be sure to install the air filterbefore using the projector. Ifthe projector is used withoutthe air filter installed, dust andother foreign particles will bedrawn into the projector, andmalfunctions will result.Air filter coverAir filterAir filter cover