Something about cook shacks and GFI's. I use mine in the garage and it is on a circuit with a GFI at the beginning of the circuit and I have never had a problem. I wonder if it just doesn't like plugging directly into a GFI plug but as with mine works fine plugged into a normal plug but still protected by a GFI up stream. Anyways I'm glad this post helped you get that first chunk of pork done, now the fun starts.