hi there,

my projector infocus SP5000 is having some trouble to stay on for more than 5 minutes. The light inside just goes off and on. It's annoying. And the projoector only has 300hours of use.

What should I do?

If by the light inside going on and off do you mean the main lamp? If so, I would remove and reinstall the lamp to see if that helps. If there is an error code it should show up as blinking lights, or a red one on the projector itself. Best of luck, sux to only have 300 hours on the projector before such a big problem.

The light inside just goes off and on.Does the fan seem to stop as well? If so, check the plug and make sure that it is seated correctly and all the way in.