I had the smoker for a few years, but really didn’t use it that much. The first time I smoked a brisket, I plugged it in to preheat it. A few minutes after setting the temp and time, I heard a popping sound. I checked the breaker, which was fine. I turned it back on, set the temp and time, and an hour later, it was still at 75 degrees. It would not get any warmer, and 75 was about the ambient temperature outside.