Diane Z Staten Island , NY September 15, 2014 Appliance: General Electric Gas Range JGS905KEK1CC Ge Range Jgs905kek1cc: Ge oven range had a f7 5b error message and all oven controls did not work. How to replace Keypanel Supt Asm (Bq. With expert advice from appliance pro parts I was able to get the right part. Key panel needed to be replaced. Thank you! 2 People found this story helpful Do-It-Yourself Rating: Repair Time Estimate: 30-60 minutes