After troubleshooting potential causes for the oven not heating, I determined that the heating element was no longer functional. The part arrived in 2 days. I turned off power to oven, unscrewed 2 screws holding element in place, and removed old element. New element was easy to slide into terminals, then replaced screws. In the past, I paid a technician to do this. The cost was $97. Do it yourself cost $37, and less than a half hour with troubleshooting and installation.