Your heating element likely needs to be replaced. Inexpensive part.
That is what I would try.
That’s it. Replace the elements. Cheap.
If it “goes” it may arc and burn. Turning off won’t do anything (220). You have to trip the circuit breaker to stop.
“Your heating element likely needs to be replaced. “
It seems to be a temperature control problem. I would not think a heating element itself would have that sort of smarts would it?
I have a similar issue at times but have just suffered with it as “cheap chinese crap”. Thus I am indeed interested in the outcome of this thread.
bump for the heating element being the likely cause and typically a cheap fix.