GE F0 code is generally a keypad issue........dismantle your display and make sure your keypad ribbon and cables going to the main control are good and firm and have solid contacts with no water or food on the terminals. Electronic boards now of days are very sensitive and even a power outage can burn boards up i see it all the time because we live in an area with severe weather sometimes. Check those connections and remove any grease or water that has spilled in between the stove and keyboard that generally is the most common thing for these units is spillage getting on the boards and keypad from behind. Sometimes a quick scratching on the copper contacts is all it takes to have a good solid connection. Sometimes steam and what not gets up in those area's and corrodes the connection but to where the human eye can't see it............Good luck