Cleaning the Air Vents

Clean the projector's air vents if they get dusty, or if you see a message telling you to clean them.

Turn off the projector and unplug the power cord.
Carefully remove the dust using a vacuum cleaner or a brush.

Caution:

Do not use canned air. The gases may leave a flammable residue or push dust and debris into the projector's optics or other sensitive areas.