Garmin 821P 用户手册

Clean the air filter and air intake and exhaust vents on the bottom and 
rear of the projector after every 100 hours of use. If they are not 
cleaned periodically, they can become clogged with dust, preventing 
proper ventilation. This can cause overheating and damage the 
projector. When the filter and vents are clogged, the projector displays 
the message 

The projector is overheated

. 

To clean the air filter and air vents, follow these steps:

1. Press the P 

Power

 button twice to turn off the projector. When 

you hear the projector beep twice, unplug the power cord.

2. Clean the air vent on the back of the projector. 

3. Carefully turn the projector upside-down and clean the filter and 

air intake vents on the base of the projector.

To clean the filter and air vents, Epson recommends using a small 
vacuum cleaner designed for computers and other office 
equipment. If you don’t have one, gently clean them using a very 
soft brush (such as an artist’s brush).

If the dirt is difficult to remove or if the filter is torn or bent, 
replace it. Contact your dealer or call Epson at (800) 873-7766 to 
obtain a new one. The air filter set (part number V13H134A06) 
contains two filters. In Canada, please call (800) 463-7766 to 
locate a dealer. 

Temp

projector is red or flashing 
orange. See page 80 for 
details about the projector 
lights.

Air vent

Air filter

Air vents