After watching the pinned thread on oven element arcing and sparking, Ours is doing the same thing (however we didn't try to shock ourselves and hit the breaker as soon as it happened.) One of the things I noticed is that it arcs and sparks even when the over is off - IE as soon as I flip the breaker on it starts arcing.
Is my issue just replacement of the element or do I have a deeper root cause and will only fry a new element upon installation?
Thanks in advance
Most likely you only need an element. Once or twice in the last 20 years has it also done damage to the computer board.
Once you have the new element installed, power off while installing, make sure your control will cycle the element off. Set the temp at 200 and let it preheat. It should shut off after about 5 mins.... Depending on which model you have.