I am so disappointed with my Jenn-Air double wall ovens. They are just 14 months old and I have already had 2 service calls for the same problem. I am told that it is a common complaint and nothing can be done. When the oven is opened it does not return to its set temp without manually resetting it. Tonight it would not heat up again AT ALL. It stayed at 170 for 45 min without gaining any heat. I finally gave up. Now I am looking at a 3rd service call for an oven that is almost brand new (not counting the service call for the latest recall on the racks). Not what I bargained for.