David A Covington , LA April 12, 2017 Appliance: Whirlpool Electric Range RF369LXPB0 Whirlpool Range Rf369lxpb0: There was no repair needed i found the switch mounting screws behind the knob had backed out and the whole switch would turn need to return the switch as it is unopened. How to replace Infinite Control Switch. Reinstalled the screws to mount the switch in position. Do-It-Yourself Rating: Repair Time Estimate: Less than 15 minutes