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Large control knob screws on. Sears says it is discontinuted. Looking for a place to purchase one.

cdverway , You can try at the links below for replacement Knob, or if inclined actually contact them and they will maybe have a substitution Knob, if original is discontinued, as a like Knob could serve the same purpose. Good luck. I hope this helped you out, if so let me know by pressing the helpful button. http://www.appliancepartspros.com/kenmorhttps://www.repairclinic.com/Shop-For-Pahttp://www.partselect.ca/Parts-For-Kenmo