My wall oven will preheat to its set temp and then when it seems to be calling for the elements to come back off after the temp has dropped it clicks a couple of times and doesn’t heat up. I would assume it probably has something to do with the temp circuit or maybe a relay not acting right. I am very familiar with working with stuff like this, I do a lot of controls work for an electric utility, so I am not totally in the dark, just don’t know much about ovens. Willing to learn.
Oh yeah, I have seen the screen display all "E"s on it when this happens but it doesn’t always display the Es.