but if light is coming out of it for 1 second.
then its not the heat thing.
when the trigger is triggered , it wont start up at all.
the power red light will get green for 10 to 15 seconds without any light coming out of the projector.
then it gets back as if you shutdown it. and the power red light keep blinking.
so i dont know what the problem with yours.
sorry.
regards