Lance V Los Altos Hills , CA July 16, 2015 Appliance: Jenn-Air Accessory A340 Jenn-Air Range A340: My thermador double oven's doors would not close fully. How to replace Door Hinge. After seven years of looking at my oven and thinking I should really see if new hinges would fix the issue. I went online searched for "Thermador oven door hinge" and up came Appliance Parts Pro. com and after about three minutes of looking at two different hinges I found the correct hinge for my oven. Shipping was quick and within 30 minutes I can changed out all four hinges. Now the oven operates better because the doors close tight. AND! The oven light isn't on 24/7 6 People found this story helpful Do-It-Yourself Rating: Repair Time Estimate: 30-60 minutes