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Overhead Projectors

My 3M 1800 series overhead power button won't stay in the 'ON' position.

Problem: When you press the blue or red power button on your 3M 1800 series overhead projector, the lamp and fan come on for an instant but then go back off when the button is released. The power will stay on if you hold the button down.

Solution: Send your projector to an authorized 3M service center, like United Visual, and get a free update to correct this problem. Note that the service center will determine if your particular problem is covered by this warranty update, but this series has a known problem with the power button and related parts.

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