I don't know about the ptentiometer, but I swapped/replaced the switch that the control knob slides onto with no success. Are you saying that the burner won't shut off because the Circuit board or Timer (part# 316239403kitk) needs replacing, yet the other burners connect to it without a problem??
Or is it the short in the burner (your original answer) and needs to be replaced? If so, how do you replace the burner?