Christina:
It sounds like you also have a latch problem, which is definitely fixable, but I am not experienced enough to advise you. John (combo52) would be the person who could tell you more; he knows more about early GE P*7 ranges than GE does.
I know enough to tell you that your problem could either be the latch, or the window shield. When you raise the window shield, look at the top of the inside of the door (the part closest to you when the door is open). You will see a hole in the oven door at the top center; the hole has a silvery plate covering it from behind.
That plate is supposed to move out of the way when you raise the window shields, leaving an open hole. That hole is where the latch goes when you flip the latch closed. The reason the plate is in the way with the shield lowered is so that you cannot flip the latch closed if the shield is not properly raised. Shield up, hole open - latch can be flipped. Shield down, hole closed, latch cannot be flipped. This is called an interlock.
If this plate is not moving out of the way properly, then your problem is with the shield, inside the oven door, and it's complicated to describe what to do. This is why asking combo52 might be a good idea. But you can test the interlock and see what's going on by yourself.
DO. NOT. disassemble the door until you understand what you are doing. It is complicated in there, there are a bunch of little weird parts, and every single blessed one of them has to be in
exactly the right place to make the door work right. Taking stuff apart in hopes you'll stumble on the problem will do more harm than good, trust me. I had to go into my oven door when I was restoring my J 370, and I thought I would NEVER get the thing back together right. I mean I was sweating and cursing.
Spare yourself that, okay?
