According to our model's manual it said the F1 code could mean the clock was bad or either the temperature probe was bad. I ordered both replace both and oven is working fine now. The only thing is is the new clock and the probe are both different from the original. You will have to use the old end off of your probe and splice it onto your new probe. And the hookups for the clock or a little different but self-explanatory if you look at everything.