Epson Powerlite 821p Multimedia Projector Users Guide

							Maintaining and Transporting the Projector71
Cleaning and Replacing the Air Filter
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. 
note
You may also need to clean 
the vents and filter if the 
Temp light on top of the 
projector is red or flashing 
orange. See page 80 for 
details about the projector 
lights.
Air vent
Air filter
Air vents 
						

							72Maintaining and Transporting the Projector 4. If you need to replace the filter, slide it off, as shown.
5. Align the new filter carefully as you slide it into place. It should 
click into place.
Replacing the Lamp 
The projection lamp typically lasts for about 2000 hours of use 
(in high brightness mode) or 3000 hours (in low brightness mode). It 
is time to replace the lamp when: 
■The projected image gets darker or starts to deteriorate.
■The   lamp light is flashing orange. 
■The message Replace the Lamp appears on the screen when the 
lamp comes on. Replace the lamp as soon as possible. If you 
continue to use the lamp after you see this message, there is a 
greater possibility of the lamp breaking.
note
You can check to see how 
many hours the lamp has 
been used. See page 61.
Turn the projector off when 
not in use. Continuous 
24-hour-a-day use may 
reduce the overall life of this 
product. 
						

							Maintaining and Transporting the Projector73
Contact your dealer or call Epson at (800) 873-7766 in the United 
States for a replacement lamp. Request part number V13H010L30.
In Canada, please call (800) 463-7766 to locate a dealer. 
Follow these steps to replace the lamp:
1. Press the P 
Power button twice to turn off the projector. When 
you hear the projector beep twice, unplug the power cord.
2. If the projector has been on, allow it to cool down for at least an 
hour (or until the lamp is cool). 
3. Use the screwdriver that came with the lamp to loosen the screw 
holding the lamp cover. 
4. Slide the cover out, then lift it off.
5. Use the screwdriver to loosen the two screws holding the lamp in 
place. (You can’t remove the screws.) 
warning
Let the lamp cool before 
replacing it. If the lamp 
breaks, handle the shards 
carefully to avoid injury.
caution
Never touch the lamp with 
your bare hands. The 
invisible residue left by the oil 
on your hands may shorten 
the lamp life. Use a cloth or 
gloves to handle the new 
lamp. 
						

							74Maintaining and Transporting the Projector 6. Hold the lamp as shown and pull it straight out. 
7. Gently insert the new lamp. If it doesn’t fit easily, make sure it’s 
facing the correct way.
8. Once the lamp is fully inserted, tighten its screws.
9. Lower the lamp cover into place. (The opening should be almost 
covered, and the top of the cover should be flush with the top of 
the projector.) Then slide the cover closed and tighten the screw.
10. Reset the lamp timer as described in the next section.
warning
This product includes a lamp 
component that contains 
mercury (Hg). Please consult 
your state and local 
regulations regarding disposal 
or recycling. Do not put it 
in the trash.
caution
Do not touch the glass 
portion of the lamp assembly. 
Touching the glass could 
result in premature lamp 
failure.
note
Be sure to seat the lamp fully 
and secure the lamp cover. If 
the lamp is not properly 
installed or the cover is loose, 
the lamp will not turn on. 
						

							Maintaining and Transporting the Projector75
Resetting the Lamp Timer
You must reset the lamp timer after replacing the lamp to clear the 
Replace the Lamp warning message. Follow these steps:
1. Connect the power cable and turn on the projector.
2. Press the 
Menu button on the remote control or projector and 
select the 
Reset menu. Then press Enter. You see the following:
3. Select the 
Lamp-Hours Reset option and press Enter. You see 
the following:
4. Select 
Yes and press Enter.
5. Press 
Esc to return to the main menu or the Menu button to exit 
the menu system. 
note
Do not reset the lamp timer if 
you have not replaced the 
lamp. If you do, the 
Lamp 
Hours will not accurately 
reflect the number of hours 
that the lamp has been used.
Enter buttonMenu buttton
Esc button
Menu button Esc button
Enter button 
						

							76Maintaining and Transporting the Projector
Transporting the Projector
The projector contains many glass and precision parts. If you need to 
transport it, please follow these packing guidelines to prevent damage 
to the projector: 
■When shipping the projector for repairs, use the original 
packaging material if possible. If you do not have the original 
packaging, use equivalent materials, placing plenty of cushioning 
around the projector.
■When transporting the projector as freight or checked luggage, 
first put it in a carrying case, then pack it in a firm box, using 
cushioning around the case. 
note
Epson shall not be liable for 
any damages incurred during 
transportation. 
						

							77
6
Solving Problems
This chapter helps you solve problems with your projector, and tells 
you how to contact technical support for problems you can’t solve 
yourself. This chapter explains the following:
■Using the projector’s on-screen help system
■What to do when the projector’s status lights flash
■Solving problems with the image or sound 
■Solving password problems
■Solving problems with the remote control
■Solving problems with the projector’s buttons
■Contacting technical support
Using On-Screen Help 
If the image doesn’t look right or your audio isn’t working, you can 
get help by pressing the 
? Help button on the projector or remote 
control. The following choices are available:
■Problems with image
■Problems with sound
■Problems with [Source Search]
■Language change 
						

							78Solving ProblemsFollow these steps to get help:
1. Press the 
? Help button on the remote control or projector. You 
see the help menu.
2. Use the   pointer button on the remote control or the up and 
down arrow buttons on the projector to select an option. Then 
press the 
Enter button to select it.
3. Use the   pointer button on the remote control or the up and 
down arrow buttons on the projector to highlight the problem 
you want to solve. Then press the 
Enter button to view the 
solution(s). 
4. Highlight a solution (if this choice is available). Then press the 
Enter button to select the solution. 
Press the 
Esc button if you need to back up.
If the solution is to adjust one of the settings, use the   pointer 
button on the remote control or the left and right arrow buttons 
on the projector to adjust it.
5. To exit the Help system, press the 
? Help button.
If none of the suggestions solves your problem, see additional 
solutions to problems in the following sections.
Press one of these buttons 
to select a problem or solutionHelp button
Press to confirm selection
Press to return 
to the last menu
Use to select 
a problem or 
solution
Help button
Press to confirm 
selection
Press to 
return to the 
last menu 
						

							Solving Problems79
What To Do When the Lights Flash
The lights on top of the projector indicate the projector’s status and 
let you know when a problem occurs.
If the projector is not working correctly, first turn it off and unplug it. 
Then plug the power cord back in and turn on the projector. If this 
does not solve the problem, check the status lights on top of the 
projector and try the solutions recommended in the following table.
Lamp lightPower light
Temperature light 
						

							80Solving Problems
Power
lightLamp
lightTemperature 
light Description
Red Flashing red  Flashing  red  There is an internal error in the projector. Turn the 
projector off and unplug it. Contact Epson for 
help.
Red Off Flashing red There is a problem with the fan or a sensor. Turn 
the projector off and unplug it. Contact Epson for 
help.
Red Flashing red Off The lamp is burned out, broken, or not installed 
correctly; or the lamp cover is open. Close the 
cover or replace or reseat the lamp, if necessary, 
as described on page 72. If these suggestions 
don’t work, contact Epson.
— Flashing orange Off Replace the lamp with a new one as soon as 
possible; see page 72 for instructions. If you 
continue to use the lamp, there is a risk it may 
break.
Red Off Red The projector has overheated and turned itself 
off. Let it cool for about five minutes, then turn it 
back on. Make sure there is plenty of space 
around and under the projector for ventilation. 
Also clean the air filter and air exhaust vents. See 
page 71. If it continues to overheat, you may 
need to replace the air filter.
Flashing red Off Flashing orange  The projector is too hot. Make sure the 
temperature in the room does not exceed 95
 °F 
(35
 °C) and there is plenty of space around and 
under the projector for ventilation. Clean the air 
filter and air vents, if necessary. See page 71 for 
instructions.
Orange Off Off The projector is in standby or sleep mode. You 
can unplug it or press the 
P Power button to 
turn it on.
Flashing 
greenOff Off The projector is warming up. Wait for the image 
to appear.
Green Off Off The projector is operating normally.
Flashing 
orangeOff Off The projector is cooling down. Wait for the light 
to stop flashing and remain orange before 
unplugging it.