While you wait for answers, we may have found some information which could help you.
Click here for Oven Door WestinghouseHow to remove a element from a oven?
outside of ring of ceramic not working?
Westinghouse 688 wall oven timer?
How can I fix my Thermostat control for Westinghouse model KB251RDM2 ?
fan works, element does not?
Westinghouse Freestyle electric wall oven 688?