James C Gainesville , GA June 15, 2015 Intermittent f1 error code Reading comments I narrowed the problem down to the oven circuit board or the temperature probe. I tested the temperature probe using a $8 radio shack multi-meter and narrowed the problem down to the oven circuit board. The video showed clear, concise directions on replacing the oven circuit board and that seems to have fixed the issue. Do-It-Yourself Rating: Repair Time Estimate: Less than 15 minutes