F0 fault code

A few weeks ago the digital display on my GE range began showing fault code "F0." At first simply pushing the "start" button turned-off the beeping. Then the oven quit working. I was told to replace the control board (part #AP3772904). I installed the replacement board this afternoon. At first everything looked good. But after an oven test cycle to see if everything was working, it began beeping and displaying "F0" again. Any idea what else might be failed?