Can not clear filter hours

Could be a heat related problem or the lamp is going bad. On a cold projector ( off for 30 minutes), pull out the lamp and look at the little filters on the lamp housing. If they are clogged, used can air to clean them. Also clean the input filter on the side of the projector.

did you change the lamps before..?

Sounds like a overheating issue. Clean your vents and filter (if it has a filter).

hi,
Try to reset the lamp hour of your projector. For that do the following.
1. power on the projector.
2. Press the menu button
3. select lamp settings
4. Select lamp reset
5. Select yes to reset the lamp hour.
OK

This means you may have an obstruction preventing airflow from circulating properly. If this is the case, it can lead to overheating of the projector, which could result in very expensive repairs.

You need to regularly clean the air filter and rest the filter timer to ensure that your projector can cool itself properly. I recommend doing this every 100 hours of use. In fact, Hitachi projectors can be set to warn you when a certain amount of time has elapsed. I believe 100 hours is the default.

If cleaning the air filter and resetting the filter timer does not remedy this, you can use canned air to blow out the inside of the projector and try to clear the obstruction.

You also want to make sure all fans on your projector are working. If not, stop using the projector and replace those as soon as possible.

Overheating is the leading cause of projector malfunction, and basic routine maintenace can increase the life of your projector and the lamp by a great deal. For example, the lamps for that machine are typically estimated to have a life of no greater than 2000 hours, and typically you'll see them go out anywhere from 1300 hours to 1600 hours. Because I regularly check my machines, the ones that are not used intensively for hours on end every day will often have a lamp life of over 2000 hours, and I found one recently that made it to 3100 hours.

It sounds like it is overheating. Are the fans all working? If so, try opening the casing and blowing all the dust out with a can of air from Staples/Office Depot. If the fans aren't working you may need to replace them.

www.berkley.k12.mi.us/file_repository/id2651vt580%20manual.pdf 
Look at maintanance - Cleaning or replacing the filters (page 49)
Make sure you also clear the "filter hours usage" indicator. It is in the same manual on page 48.

several reasons, it could be you havent had its 1000Hrs service and is overheating or filter needs cleaning or lamp is past its change time and is generating too much heat or sensor can sometimes come away and drop into light path causing false sensing of temp.

Marc Engineer

Try cleaning the filters, there is one on the front and one on the side. When dust builds up on these it can restrict the cooling of the projector

projector turns off after 30 seconds problem solution