Bottom fan oven not getting power but top...

Question

I noticed the timer came on (possibly switched on by my neice) whilst cooking a roast. Panicing I could not get any of the symbols to clear and then switched oven off at mains. When I put back on timer will not even show zero (just the dots in the middle) and the oven does not come on when switched on. The top oven is working normally. I thought maybe I locked the oven out but have tried the cancel procedures from the manual but to no success. Have I broken it?