water heater works fine - IF- I leave door open

what color is the flame when you have the door open. I was having this issue also because I had it adjusted to lean and when I closed the door it would go out. then some one told me to adjust it so it was just flickering yellow when the door was open and its has been good since. but pinching a wire would do it also if there are any wires that can be pinched when you close the door. there isnt in mine.

Steve