Question about Optoma LFU250E Projector Lamp for H77,H79

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Optoma H77 - Lamp shuts off after coming on for 5-10 minutes

Does this mean that the lamp is about to go out and I need a replacement bulb? The red light comes on when the lamp goes out.

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  • mjtjr70 Jan 23, 2009

    I had the same issue a few days before Christmas. I went out of town for a few days and tried it again and the projector worked fine for several weeks up until a day ago. I just bought this lamp in January of 08 and it shouldn't be used up yet. I forgot to reset the lamp timer, but the first lamp I had lasted nearly two years. I can't figure this one out.

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Hi SoonerJDP

This is indeed a warning that the hours on the lamp has been used up and that you will have to replace the lamp.

Remember to reset the lamp timer once you've replaced the lamp.

Posted on May 19, 2008

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1 Answer

WHY DOES MY HD OPTOMA DLP 70 TURN OFF AFTER FEW MINUTES?


If you have recently replaced the bulb you may need to reset the lamp counter in the projector menu.
If you have not replaced the bulb, the projector may be shutting down due to over-heating. Check that the projector is clear of as much dust and debris as possible.

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After a few minutes the projector turns off, the red light of the light bulb starts flicking


are you managing to get into the menu at all and reset filter and lamp hours?

By the way - although optoma what cheap option for our school, i now get hitachi with 3 year bulb warrenty.... mine BURNT out luckily not at weekend or school may have gone up too - expensive optoma really then if that had happened.
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The problem is not over-heating. The Optoma HD72 has a known problem that Optoma won't advertise. The lamp driver is faulty. They simply have to replace the lamp driver. I purchased a spare lamp with my original purchase. I had the exact same experience as you at around 1200 hours on the lamp in ECO mode. I used the spare lamp. Same thing happened at about 1200 hours. I had a friend at Optoma. he confided to me the problem. I sent it in and they replaced the lamp driver at no charge. I got another 800 hours out of the first lamp and am now using my second lamp and have about 600 hours on it. The pic quality is so good with this projector (used Digital Video Essentials to calibrate) that I'll just order a bare lamp or two and use the existing lamp housings when I need a new bulb.

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Hi Pierre,

Did you resolve this issue. I am facing a similar on. After a few minutes, the lamp shut down and the the red lamp light turns on. I was thinking it is an overheating issue.

Regards
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