William R North Chesterfield , VA February 21, 2016 Appliance: General Electric Built In Oven W/Microwave JTP90BM2BB Ge Oven Jtp90bm2bb: Oven would not heat or broil. How to replace Oven Control Assembly (Electronic Control Board). Checked all safety limit switches, elements and sensors. The only thing left was the controller, and replacing the controller assembly fixed it. My daughter is happily baking again. 1 People found this story helpful Do-It-Yourself Rating: Repair Time Estimate: 15-30 minutes