My microwave is flashing a F3 code when power was restored
I lost power than when it came on my micro wave had a F3 code on it
The code means you have a shorted key panel. Here are all the codes that microwaves flash, what they mean and the fixes for them: http://appliancejunk.com/forums/index.ph...
Also, PLEASE refer to one of my previous answers on microwave repair so you don't end up DEAD!