I went to warm my 30" MES, I wanted to warm it to take out and clean the racks. I set it for 250 and it warmed up good. Started smoking bad, so I opened it up and had a small flame behind the element and thouht maybe some drippings so I put a little water on it. There was a spot behind the cover over the chip tray that started glowing white hot. I unplugged it and now it will not get hot. Did my element burn out? Is it hard to replace ir should I trash it?