Leon B Diberville , MS January 18, 2017 Appliance: Model GE JBP64 BOB1WH Even after replacing a burned out oven lower cooking unit the new one would not heat I ordered a new TO8 Control Unit and installed it. Everything works well now. Read More... 1 People found this story helpful Do-It-Yourself Rating: Repair Time Estimate: 15-30 minutes Tools: Nut Drivers