Jason P Waterbury , CT December 22, 2015 Appliance: General Electric General Electric JB640DR5BB Ge Range Jb640dr5bb / : My oven clock began losing time and flashing on and off randomly it also displayed a "line bad" error. How to replace Faceplate Graphics. I replaced the oven control which was very easy to do. It was recommended to purchase the graphics faceplate as well, but if you carefully remove the old one from the existing control board it will be reusable and will retain some of the adhesive. Either way it was a total success and it is nice to see the oven work and avoid a costly replacement. Do-It-Yourself Rating: Repair Time Estimate: 15-30 minutes