Question about Hitachi XGA Multimedia Projector

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Cleaning the filter

Our projector is displaying the message 'Need to clean the air filter' and the red lights for lamp and temperature are flashing. There is good air circulation around the unit. How do I remedy this, please?

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Re: Cleaning the filter

Clean or replace the filter - check manual or Tech support for this machine.

Posted on May 17, 2007

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After turning on the projector, I get a message that says clean the filter and reset the timer. How do I do that? I have cleaned the filter.

Procedure for resetting filter time.
Pressing the RESET button for about 3 seconds displays the FILTER TIME menu. Select the RESET using button to reset the timer. : RESET <- CANCEL Selecting the RESET resets the count of the lamp timer to 0. memo Perform this function only when you have cleaned or replaced the air filter. The filter timer counts the used time of the air filter after cleaning or replacement, to display the messages about the air filter. Incorrect performing causes incorrect operation of the messages. memo About caring for the air filter, please refer to the section "Air Filter".
Users manual located here.
Good info deserves a good thumbs up! Thank you!

Mar 01, 2011 | Hitachi CP-X1250 Multimedia Projector

2 Answers

Red power, blinking red temp


if the Lamp error and Temperature error lights are flashing red this means that there are two separate errors.

  • A flashing lamp light means the lamp failed to ignite. It could be a lamp driver problem or lamp failure. Replace the lamp to resolve the issue. If the issue is not resolved, then service the projector.
  • A flashing Temperature light signals a fan error. Turn the projector off and allow it to cool down. If the light is still flashing after the projector is turned back on, service the projector.

Feb 25, 2008 | Hitachi CP-X250 Multimedia Projector

1 Answer

Power indicator /red/ and warning led/red/ are lighting after ea 15 sec. a lamp never start and fans goes in OFF mode. I checked power supply lines S5V,S-5V,S16V on the Main Board . I checked unit lamp...

If power indicator light red and warning indicator red flashing than according to user manual :-
The projector has been cooled down enough and the temperature returns to normal. When turning ON the projector the WARNING indicator stops flashing. CHECK AND CLEAN THE AIR FILTER.
Experience:- 1. if the temperature is very low than temperature sensor maybe misbehave.
2. If anyone fan not working
so please you check fans.
(If lamp or lamp ballast unit faulty than after a time period the lamp indicator light ON not a warning indicator. I experience many times if any fan in projector are broken or jamed the temperature light if present otherwise warning light ON or flashing)

Jan 20, 2011 | Sanyo PLV-Z4 Multimedia Projectors

1 Answer

My panasonic PTLB60NTE shuts down after couple of minutes when I use wireless mode. How can I solve this?

There is three indicators lights on the panel
1. lamp indicator.
2. temperature indicator.
3. computer input indicator.

If your projector shutdown itself without given any indication its mean that your projector function POWER OFF TIMER is on. You can off this function.
How: (two keys back side of projector one is menu second is a joystick witch have 4 arrow keys and center press is enter)

press MENU button to display the menu screen and then use joystick UP or DOWN to select the OPTION menu. press joystick to ENTER and then use joystick UP or DOWN to select POWER OFF TIMER use joystick RIGHT or LEFT to select DISABLE then press MENU two times to exit the menu.

If your projector shutdown itself with given any indication then

If LAMP INDICATOR flashing RED then lamp circuit failure its need to be repair or replace.
If TEMP INDICATOR flashing RED then the temperature inside and /or outside the projector is abnormally high.

CAUSE: The ventilation opening are covered. The room temperature is too high. The projector is located at high elevations (above 1400m)
REMEDY:clean the air filter. Remove the object from the ventilation openings or clear around the projector. Set the HIGHLAND option to ON

Jan 04, 2011 | Panasonic PT-LB60NTE LCD Projector

1 Answer

The projector lamp turns off after one hour.

Very likely the air vent is block or you will need to clean the air vent. The system track the hours of usage and when it is time to clean the air vent filter it will stop working. A clogged air vent will make the temperature of the equitpment rise. To protect the circuits and projector expensive light component it will stop working automatically. After cleaning up the air vent, see the manual how to reset the clock/timer for air vent cleaning timing, so that the lamp would not turn off.

Aug 10, 2010 | InFocus Proxima DP5900 Multimedia...

1 Answer

Fan in ventilation didn't work and power lamp steady red,lamp red and Temp lamp binking red

Very likely the airvent is block or the timer for the airvent cleaning is max. See manual how to clean air vent filter and reset the timer after cleaning it

Aug 08, 2010 | Mitsubishi LVP-X390 Multimedia Projector

1 Answer

Lamp bulb indicator is red and unit will not light up

The ambient temperature in the room is to high.
Try lowering the room temperature. If that doesn't work
get a small fan and place it near the projector to provide
extra cooling. The projector is running border line on
high temperature and just needs a little extra cooling.

Also, check and clean the air filters.

Jul 17, 2010 | Optoma HD65 DLP Projector

1 Answer

Mitsubishi HC900 Projector shuts down after 5 minutes.

You have 1 of 2 possible problems.

(1) You need a new lamp.

(2) You have an overheating problem.

Just a quick couple of notes about your projector. It is a DLP projector (not LCD) and as such the machine as no air filters to clean. It does have air intake and air exhaust grilles, but no air filters to clean. This next part comes directly from the owner' manual for your projector:

When the lamp operation time exceeds 2000 hours*1 *2, the projector automatically shuts off and can’t be used until the lamp is replaced and the lamp operation time is reset.

Your machine is designed to give visual warning messages at 1500 hours used, and 1900 hours used. Did you see any visual warning about lamp life over the past few months?

If you were experiencing an overheating problem, a "TEMPERATURE!!" message would flash up on the screen just before the unit shuts down. If there is no warning, you don't have a heat problem.

If you have a replacement lamp available, install it and reset the lmap hours according to your user manual. If you don't have the manual, google it on the web (it available).

Apr 01, 2009 | Mitsubishi HC900 Multimedia Projector

1 Answer

PB6110 Powers down after 30s, splash screen appears, red temp lig

Be sure to check the filters and make sure you have good airflow thru the proj. Cleaning filters solved our temp shutdown problem.

Nov 17, 2008 | BenQ PB6110 Multimedia Projector

2 Answers

Warning lights

Just so you know guys (and this procedure is not for the faint hearted!). I had the slow one second red warning light flash. I checked the bulb, which was find and I left it powered off for 48 hours. My projector is no longer under warranty and would have cost me over £300 to have it looked at. I ventured inside to inspect the boards, once I removed the main board to check the power supply I heard movement from one of the light ducts. It took me a while to removed enough to discover the fixing screw which holds the imaging cube in place (which is between the 3 light ducts and the projector lens) had come out (!?) and was rolling around inside the unit. This would also explain why sometimes I could not focus my unit properly. I remounted the imaging cube, put the whole thing back together and PRESTO! My projector is working again.

Jun 21, 2008 | Epson EMP 720 Multimedia Projector

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