That toaster was covered in a popular Youtube video:
https://www.youtube.com/watch?v=1OfxlSG6q5Y
Some pretty clever old-school tech going on in that thing.
You Tube has saved us a lot of money this year.
Our DWer, washing machine and dryer stopped working.
On of our DILs re the DWer told me to go to You Tube and check out the restart button and use it.
That worked. Similar results with our washer dryer and even our routers.