After sitting outside under cover for six months unused(Long story short, we had a new house built on our property, so we had to move to a singlewide trailer while it was being built), I tried to fire up the PB820 to cook a pizza. Not only did the GFCI trip, the breaker in the garage also tripped. My first thought was the ignitor, so after I unplugged it, it did the same thing. Hopefully the control board didn't die. I'm hoping something built a nest inside, and caused a short. I have already doused the inside under the hopper box with bug spray a couple of days ago, after I was surprised by a wasp! Later today, I'll go out and take it apart some more, and check things out.