Changed the controller (AP4337066 (DG44-01002A), which is for the larger, front burners). Slide out the range, remove 5 screws to gain access to the top back, note the orientation of the controller and then swap the wires over one at a time. Pull the knob off of the front, remove two screws holding the controller in place and then insert the new controller and re-assemble. Spent far more time cleaning behind, under, and around the sides of the range.