Had a bug trapped in between the display and outter lens making it hard to read among other things. Decided to take it apart and clean the display. Cleaned it, put it back together and now I get an E0 F1 display. The "Start" and "Minutes" buttons don't work now. I can set the temperature but cannot start the oven. Is the panel bad or is it the control board. Why would it go bad because I unplugged it and plugged it back in? Is there any way to do any diagnostics on it. I have a VOM.

Thanks,
Craig