I replaced the 'infinite control' switch. Remove bottom drawer and unplug range. Slide it out a few inches to access the screws on either side that hold the control panel on. Remove control knobs and carefully pull outward and upward to lift the panel, flipping it up on top of the range. Note which wires go to which terminals on the switch, then remove them. Remove two screws holding switch to panel and replace switch. Reassemble then plug back in and test.