I've had my pitboss grill for a month now, until a week or two ago it was problem free. I was doing a long cook and it randomly shut down on me, but It turned right back on. After using it a few times after that the grill will not power on, and I've checked the outlets and breakers. I thought I'd try it the other day, plugged it in and it started right up. Came out later to use it and it's back to not powering on. Anyone else had this issue? Any ideas fora resolution?