Projector turns on the power light flashing and lamp light solid

Here's the fix: Take off the top cover of the projector. Unplug the wire leading from the two fans in the back of the unit to one of the circuit boards in front of you. Just trace one wire from fan to board. Unplug at board. Turn unit on and it will again turn on, show HP splash screen and then shut down, like it should, because the fans are now disabled. After it completly shuts down, plug the fan wire back into the board. Turn the unit back on and, presto, its working again. It will not turn off.

Try it!