Lewis M Kennesaw , GA September 24, 2016 Appliance: Maytag 30`` Electric Built-In Cooktop MEC7430BS00 Maytag Cooktop Mec7430bs00 / : Range top with broken knob for one burner. How to replace Knob (Control). Replaced knob with part ordered 1 People found this story helpful Do-It-Yourself Rating: Repair Time Estimate: Less than 15 minutes