Dave B Irvine , CA December 30, 2025 Appliance: KitchenAid 5 Qt. Stand Mixer Professional Heavy Duty Bowl Lift KG25H3XSL5 Kitchenaid Mixer Kg25h3xsl5: The slider switch became unresponsive. How to replace Speed Control Assembly. Easy swap of the part solved my problem. Do-It-Yourself Rating: Repair Time Estimate: 15-30 minutes