I have an older Whirlpool oven that has recently started to make noise when I turn it on. I am pretty sure it has something to do with the oven fan. In addition, the door does not seal too well so if I can fix that at the same time I'd be really happy. Is this the sort of thing that can be fixed by myself or a repair person, or am I looking at a new oven? I'd like to think that most ovens are very serviceable, but I am not sure where to start figuring it out.
I think your reasoning is good - it's pretty easy to pick out a the sound of a fan hitting against something. I recommend RepairClinic.com. They have a great site for appliance parts, and lots of info and schematics for what parts are available and how to replace them. You already have the manufacturer and model number, so you are ready to go. Hope this helps.