I recently got this smoker from a guy who was getting a new bigger one. He used it once and it worked fine. He had it plugged in when I went to see it. It powered up fine when I was here. We have it set up outside and it won't turn on. I checked the outlet and it is working. I even checked to see if the controller plug had come undone but that is secure. I read about cold affecting the units but it's summer and 75 degrees out. Anyone have any ideas? Is there something I'm missing?