Hello, After 2 years of use, one of our 2 projectors has started randomly shutting off. It first happened after about 3 hours of continuous use, and now it happens after about 30 minutes. It's done this about 8 times now over the last 2 months, but is now happening nearly every time we use it. None of the warning lights come on, and it will restart after about 2-3 minutes. There's nothing in the book that addresses this issue. These projectors are mounted on a pole, upside down, about 30 feet off the ground in our church sanctuary. Does anyone have any ideas?
Thanks very much!
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Re: Projector randomly shuts off
all these things leads to 1 conclusion:
the device is packed with tons of dust
it has a safty powerdown on heatup
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if it is overheating, blow out the projector with canned air. excessive dust keeps in the heat that the projector is trying to expell. also, make sure all of the fans are working properly. if it's cleaned out and the fans are running, you may have a main board issue.
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.
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).
I had the same problem, the first couple of replacement bulbs i ordered worked fine but the last 3 i got, 2 of them have been faulty, i just sent them back and they replaced them. If its too late to send the bulb back you can go to the settings on projector, select lampsaver setting, its probably set at off, turn it on. Your bulb will be a little dimmer in this setting but shoud let the projector run ok.
would need a model number to get this nailed down but it sound like you have a DLP projector, this might have a color wheel in it, sometimes when this fails you get flash of colors as the color wheel slows down then the unit sences that the color wheel has stoped and shuts down the unit
It's not a short, the blub is near the end of it's life ~ the optoma is designed to detect when the blub is about to blow and shuts itself down. Turning the projector upside down or right side up usually only gives you a brief reprieve (some have reported a modest amount of extra time gained) on the blub ~ but in the end it's on it's way out and the projector will shut down again.
This is NOT a bulb problem unless your "lamp" LED is lit, which you say it is not. Many people have reported this problem with the Optoma 72. You can send it in for warranty service (it has a 2-year warranty) to get the lamp controller chip replaced, but the problem may recur. Optoma does not appear to have a permanent solution to this problem. My projector has broken exactly like yours TWICE in a year. I haven't even needed to replace the original bulb yet. :(