Problem with the lamp (by 3 users)

I have used my projector to display photos on a screen from a computer. Everything was fine and i turn the projector off at the end of the presentation.
The next day when i wnated to use it to watch a movie, the lamp led had gone flashing red...

I thought the lamp was broken because i moved the projector and break it, so i bought a new one (really expensive)

After placing the new one..... the led is still flashing red =(

I think there's another problem than the lamp behind this... Any ideas??

Thank you very much

Remi