Ordered the replacement fan from AppliancePartsPros.com. Ordered and shipped the same day. Arrived next day! The hardest part of the repair was sliding the built-in oven/microwave unit out of the cabinet it was installed in. Once I had access it was just a matter of removing a couple of sheet metal covers, removing the old fan, installing the new one and buttoning it up. That did the trick and the oven is working again.