Brian F Haslet , TX October 20, 2015 Appliance: General Electric Electric Range JBS55MM2BS Ge Range Jbs55mm2bs: F7 error code on a ge range. How to replace Electric Range Oven Control Board. I did a Google search and found this error is indicative of the control panel failing. I ordered the replacement panel from Appliance Parts Pros, received it in a couple of days and a 10 minute repair job to the oven fixed the problem! 1 People found this story helpful Do-It-Yourself Rating: Repair Time Estimate: Less than 15 minutes