My oven heats up, but my fan does not come on?

I was recently baking in my oven and we smelled a "wire burning smell" and then the oven stopped working. We had to replace the clock part in our oven before, so I assumed it was that because the stove part would work but the oven would not. So I just had someone come out and replace the clock, but now the oven heats up but the cooling fan does not come on. Any suggestions? I have a frigidaire model #FES367DSC. Thank you for your help.

Elizabeth
October 2009