

It’s possible for the switch behind the knob to fail. They’re called selector switches or rotary switches (https://duckduckgo.com/?q=stove+rotary+switch). In my case, some plastic from the casing melted and became a conductor, so the element could not be turned down or turned off. This is also an easy replacement.
Turn off the breaker, unplug from outlet, open up the back of the stove/oven (take a pic or mark the wires to remember where they go), remove the offending switch and look for a model number on it so you can search for and order a replacement online. All I needed was a phillips screwdriver. You can still use the rest of the stove top elements without the broken switch until your replacement arrives.







I, for one, am a fan of bringing back the ascot. (but perhaps not during the height of the summer months.)