Ken, I asked Wayne Boatright for a referral to his appliance repair outfit in Phoenix. You weren't specific about your location, so, if this guy is too far away, he might know of someone closer to where you are.
From Wayne:
Yes, Norman, I just had some service done on my refrigerator and the company and technician were excellent. The name is Goldwing Appliance. They are located in central Phoenix. I would assume they would be equipped to work on his oven.
Address: 160 E Broadway Rd, Mesa, AZ 85210 Hours: Open today · 7AM?5PM Phone: (480) 615-5700