Robert B Seneca , SC November 15, 2014 Appliance: General Electric Gas Range RGB745WEA7WW Ge Range Rgb745wea7ww: Irregular heating could not hold consistent temperature assessment was the control board was sending wrong signals. How to replace Knob Control (Wh). New board works great, easy to install. My unit did not need the new control knob which you said was required. The old one fit perfectly however I kept the new one to avoid the hassle of a return. Do-It-Yourself Rating: Repair Time Estimate: 30-60 minutes