my thought on that it more than likely the bulb because i had the bulb out and nothing work,one thing else i do is unplug it But i wait for the Fan to shut down and the light is blinking when not in used because it keeps thing working,just like my computer i shut it all the way down

in most cases it the projctor bulb or lamp any way you would say ,one thing i want to say you cant have the cover over the bulb off it wont work for sure