While you wait for answers, we may have found some information which could help you.
Click here for Seal Oven DoorIs it possible to clean inside the glass oven door ?
outside of ring of ceramic not working?
My Westinghouse 688 freestyle wall oven?
How to remove a element from a oven?
Westinghouse Freestyle electric wall oven 688?
Westinghouse Oven 688?