Bought a used wall oven that was in great shape. Works fine, except on the convection mode, the convection fan is very noisy. I hear both the air noise of the fan as well as vibration in thie unit.
Looked at the fan, and there may be a bit of runout (e.g. not exactly balanced) but other than that, looks OK. None of the fan blades bent or anything.
Is there a common fix? I could replace the fan rotor itself, or the entire fan+motor?
A service manual would help ... any pointers?
Thanks for any help. This site has kept a number of appliances from the dump, and appreciate all the professional help available here.