Bulb replacement I have an Acer projector which I recently had to change the bulb in. The problem is that I am still getting the message that the bulb needs to be replaced. Do I need to reset something? And how do I do this? I have checked the manual that came with the projector and it does not explain this. All it says is that the projector senses when the bulb needs to be replaced. The old bulb was replaced by a new bulb.

sounds like polarizer filters.

Try to open the unit and the clean it as it has mirrors in it that might be dirty which needs a cleaning.

Hi Cathy,

The replacement of the filter is something that needs to be done at a service center by a trained technician. If you are interested, feel free to send us a message: Projector Repair Bulb Replacement

The likeliest problem here may be a burned out or failed projector bulb. Most projectors will fail to power up at all when if the bulb is out. The HD20 user manual does not specify a red light as an error indication option however, generally amber.
User manual .pdf is located here (takes a bit to download for it's size), Projector Status Indicator instructions are located on page 40.
Here on the product page itself, an email to Optima support may be warranted given the red instead of amber error light.
If you had any messages recently indicating your bulb life was nearing it's end, again, this would be my first guess. Certain models of projectors do have a tendency of blowing through bulbs even before any warning message comes up. I had an experience with a certain brand/model that for the last 3 replacements has given only about 1/4 of the stated bulb life, so unfortunately it does happen.

You need to reset the light counter. Access through right most menu item. Then arrow down to lamp settings.

Here is proceudre to reset lamp timer in your TV..
While pressing the VOL Down button on the projection display, hold down the PIP or SPLIT button on the remote control at same time for more than 5 seconds.
When reset procedure is complete, the screen message ' lamp time was reset to 0' will appear.
Hope this info will help you.
Thanks.

get a bottle of canned air. blow out unit. take bulb out and clean everywhere every time you change bulb. let it sit for a while so it warms back up prior to plugging back in.the air gets cold

We have a number of these at the school I provide support at and just recently I've had to replace the lamps in six of these.

I've found the method HP details a bit hit and miss, i.e. you might have to try doing a few times before you get the message. First power off the projector and then remove all inputs to it, it won't work if you have anything still plugged in other than the power. Re-apply the power and then press and hold the up button. You should now get a message on the screen 'reset lamp hours for new lamp - press [auto sync] to reset', press the auto sync button as soon as you see this message as it soon goes off.

You can then check via the menu to make sure the lamp hours has been reset to zero.

you need to reset the lamp timer. turn it on, and press and hold the left arrow, right arrow, and power button until it resets.

we were unable to pull the projector menu & it also took about 2 hours for the bulb to turn on.......the fan works, have changed the bulb, closed the bulb door & tried to reset the projector.......help!