Roy F Elgin , IL April 20, 2015 Appliance: General Electric Gas Range RGB745WEH2WW Ge Range Rgb745weh2ww: Broken knob valve burner 270. How to replace Valve Burner 270. Nice and easy according with the video help! Delivery was fast and I thank you very much saved me a lot of $$$$ Do-It-Yourself Rating: Repair Time Estimate: 15-30 minutes