Epson BrightLink 1485Fi 5000-Lumen Pixel-Shift Full HD Ultra-Short Throw 3LCD Interactive Laser Projector - Manual (Page 323)

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If regular maintenance is not performed, your Epson projector will notify you when the temperature
inside the projector has reached a high level. Do not wait until this warning appears to maintain your
projector filter as prolonged exposure to high temperatures may reduce the life of your projector or laser.
Damage due to the failure to properly maintain the projector or its filter may not be covered by the
projector's Limited Warranty.
Cleaning the Air Filter and Vents
Replacing the Air Filter
Parent topic: Maintaining and Transporting the Projector
Related references
Projector Light Source Specifications
Cleaning the Air Filter and Vents
Clean the projector's air filter or vents if they get dusty, or if you see a message telling you to clean them.
Caution: Do not use water or any detergent to clean the air filter. Do not use canned air, or the gases
may leave a flammable residue.
1. Turn off the projector and unplug the power cord.
2. Loosen the screws securing the air filter cover.