We have a Kuppersbuch Okotherm double oven. Something's happened to the top oven as none of the heating elements come on, ie: neither of the grills or main heating elements, nor the main circulation fan.
However the background "cooling" fan does powerup when selecting any of the top oven options with the main push/twist control. so it's still "switching" to some extent.
Might it be the oven temperature limiter that's failed completely ?

Thanks - Julian.

Ovens - Kuppersbusch - EEB 6600.0 MX Stainless Steel Single Oven