Model # RB526H3WW

I'm about to replace the lower oven heating element but while I was adding it to my cart I decided to tackle another problem this stove has had for years. The large front burner will suddenly heat out of control when it's a little over medium heat and the only way to get it to stop is to turn it off, wait a moment, and turn it back on. It works fine on any setting from 1 to 5, but over that it is unreliable. I'm not sure what parts I need to order to fix this problem.