This is the main board of a Thermador SEC301BP/02 Single Oven. Following
self clean none of the 3 elements heat up but other functions work. I
suspect the black double line relay doesn't work. Can you look at it.
Thank you for reaching out. This does look like something that we service, depending on your issue. Below I have provided a link that can get you started on the ordering process. The link will let you know what issue will be covered under the repair. If you have any questions, feel free to reach out. We look forward to working with you.
https://www.upfix.com/product/00144001-oven-control-board-repair/