Problem is oven setting and oven temp are 75 to 150 degrees off. I set the thermostat to 350 and the oven heats to 500. preheat ligght comes on. I open the door to drop temp to see when the ignitor comes back on and it lights when it drops below the temp setting on the thermostat. Then the temp runs back up to 450 or 500 degrees again. Maybe the temp probe. I checked the resistance when the temp was 400 degrees and got 1133.