I’ve had my RancherXL for a year now and haven’t had any issues until this last month. I put a 19lb brisket on at midnight, set to 225 and when I got up at 3:00 to check it, it was at 190 degrees. I have done this a dozen times and no issues before. I had run it for an hour before I put the brisket on to make sure everything was working fine since I hadn’t used it for a month. It was clean with fresh Pit Boss pellets. I chalked it up to a fluke but I put ribs on an hour ago to smoke and they’re at 170 degrees. It’s like it’s grilling everything. The temp on the box says 223 and the other says 235, they’re never consistent. Any help would be greatly appreciated.