Just moved into an old home and discovered that the oven door doesn't close all the way. It remains open about 1" which lets out the heat. Any idea of the cause of this problem and the solution? I am guessing that the door hinges/springs are worn out. If you agree, how do you remove these old parts? It is not obvious from looking at the oven itself. I was able to find replacement hinges online so could order once I determine whether this is the problem and figure out how to remove/install. Many thanks for your help!