Went to start my 43 for the first time this year and had a "Warning door open" and it won't start so I look for switches on the door and there are none. Then check here and can't find a answer. So I'm staring at the stove and hit the start again then notice that I don't hear any fans going and know that isn't right. I open the bottom door and take out the ash pan and with my finger give the fan in the back a little nudge and it started right up and has been running fine.