How Long Does Your Projector Lamp Last? - Home Theater Forum and Systems - HomeTheaterShack.com

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post #1 of 39 Old 02-14-07, 10:36 AM Thread Starter
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How Long Does Your Projector Lamp Last?

Please let me know how often you have changed lamps in your projectors!!!

Well, I just changed the second lamp on my Optoma H78-DC3 after 630 hours and about 9 months (of course after the 6 month warranty). The first lamp was replaced after about 500 hours.

The first lamp was replaced because the lamp was so dim the projector couldn't adjust the brightness up high enough to display the colors properly. The bulb did not burn out and did not trigger a lamp fault indication on the projector.

The second lamp triggers the lamp fault and shuts the projector down. I can turn the projector off and then on again and the projector would start up....but not always. So I changed the bulb.

I run the projector in "normal" mode, not "bright" mode so I'm not running the bulb at high output.

Ok, I'm not being picky since I don't have a problem changing a lamp every year. Just the cost of doing business as far as I'm concerned. I just wish the lamp would last for one year. My previous Yamaha DPX-1 lamps would last between 700 and 1,000 hours with no problem, but those lamps were rated for 1,000 hours. No complaint there. (Granted, I ended up getting rid of the Yammie after 2 1/2 years after the DLP driver board blew and repairs would have cost almost as much as the Optoma I replaced it with.) But Optoma says the lamps should last for 2,000 to 3,000 hours.

Does anybody think I should send the projector into the factory for a "checkup"?
After the first lamp went very dim the factory said to send the projector in for service. But if all it needed was a lamp they would change the lamp and charge me bench time + the lamp + shipping. That didn't make sense to me then when changing the lamp is so easy (even a caveman can do it). I changed the lamp and everything was OK. So I figured that was that, problem solved. But now I have this problem with the second bulb after just over 600 hours.

I'm just not having good luck with projectors
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post #2 of 39 Old 02-14-07, 10:44 AM
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Re: How Long Does Your Projector Lamp Last?

Definitely, It sounds like your either getting bad bulbs or something is wrong with the projector. If I had to change 2 bulbs before the thing was a year old I would definitely get it checked out! Optoma's customer service is EXCELLENT! I did a warranty through them and they never even asked me for proof of purchase or anything...so I'd give them a call or email and ask them about it.
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post #3 of 39 Old 02-14-07, 11:37 AM
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Re: How Long Does Your Projector Lamp Last?

I would send it in also.

the cost of bulbs is too high to replace after 5-600 hours.
plus if they find something wrong with the PJ, they might just give you a free bulb.

You might also check to see that your mounting conditions aren't adding extra heat.

I have an epson PJ behind a glass window in my setup.
my old projector was rear venting so it wasnt a problem.
the epson is front venting so it's throwing heat right at the window.
All that heat is getting trapped, so I added a $10 box fan to the shelf, and blow air over the whole area, now it's nice and cool...

- Jack
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post #4 of 39 Old 02-14-07, 04:18 PM
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Re: How Long Does Your Projector Lamp Last?

I think I would be jumping up and down on somebody if my lamp only lasted for those short hours..
That's terrible...Definitely sound like a bad unit...
I would be asking for two replacement lamps after all that trouble..
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post #5 of 39 Old 02-14-07, 04:56 PM
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Re: How Long Does Your Projector Lamp Last?

Is the unit in an area where it's building up heat? That'll cook 'em QUICK!
If it's "out in the open", that's WAAAYY to often to be messing with high dollar bulbs.
Are you buying the bulbs from the manufacturer, or "O.E." bulbs, not some cheap "off brand" bulb?
Does this unit have an air filter that may be clogged? That'll buld up heat too.

My Sanyo PLV Z2 is about one year old and runs 2-3 hours almost every night, and runs on the weekends almost ALL DAY. I've never replaced a bulb, and it's not shown any signs that it's getting dimmer.
I've not found where on the menu to find the "HOURS USED" or "LAMP LIFE"..... but I feel at this point I've gotten my monies worth out this bulb.

Call tech support, or email them (IMHO)

Bob
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post #6 of 39 Old 02-14-07, 07:40 PM
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Re: How Long Does Your Projector Lamp Last?

My Sanyo PLv-z3 its about two years old and we watch at least 4 movies a week and there is no sing of the bulb needing to be replace, I agree with everybody else, you need to send it back!!
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post #7 of 39 Old 02-14-07, 09:12 PM Thread Starter
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Re: How Long Does Your Projector Lamp Last?

Yes, it's in the open in an area where the AC duct blows past it.
I only buy OEM bulbs directly from Optoma (or any equipment manufacturer).
I use my projector almost every day for 3 to 4 hours straight.
Yes, the filters are kept clean and the unit is kept clean of dust.
Yes, the unit is on an APC SmartUPS that has AVR (auto voltage regulation).

To be honest, I'm just tired of sending equipment back to factories and waiting. I've got many nightmare stories that I just don't want to get into.

But, I'll see if Optoma can do anything for me
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post #8 of 39 Old 02-15-07, 05:35 AM
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Re: How Long Does Your Projector Lamp Last?

When I had a problem with a Harman Kardon, they told me to check thier website for an authorized repair shop that is close to me. I had to drive about 35 miles, but it was much quicker than shipping it off somewhere.

Bob
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post #9 of 39 Old 02-15-07, 01:33 PM
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Re: How Long Does Your Projector Lamp Last?

My first lamp lasted about 480 hours. It developed a 'flickering' problem. Sent it back to Mitsubishi and they replaced the lamp for free. They also stated that the lamp should last at least 2000 hours with the average being 3000-3500 hours.

It could be a bad ballast.

mech
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post #10 of 39 Old 02-15-07, 04:17 PM
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Re: How Long Does Your Projector Lamp Last?

When I sent my projector off to optoma it was gone about 2 weeks. So not very long.
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