Peter B Walnut Creek , CA February 17, 2016 Appliance: Thermador Built-In Ovens C301U Thermador Range C301u: Oven door would not close all the way. How to replace Door Hinge. I replaced both door hinges. It took about 30 minutes to remove the old hinges, clean the glass between the door panels and re-assemble the doorr. The door now closes properly providing a good heat seal and properly activating the door switch to turn off the oven light. I had to use a piece of PVC pipe to lever the new hinge into position to secure the latch that allows the door to be re-installed in the oven. 2 People found this story helpful Do-It-Yourself Rating: Repair Time Estimate: Less than 15 minutes