Identify this bathroom extractor fan

bathroomexhaust-fan

I have a bathroom extractor fan that has gone bad, so I need to replace it. If possible, I would like to just replace the motor, rather than opening up the ceiling to put in a whole new enclosure. The problem is, I don't know how to find a replacement. Here are a few pictures:

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The cover says "Nutone", but I can't get any hits by Googling the partial text visible on the back of the fan. Any advice on how to proceed?

Best Answer

NuTone likely doesn't have anything to do with this. That is a newer NuTone fan cover that has been drilled to fit over the center post on what is a very old vent fan. That vent fan used to have a round cover that likely broke at some point.

That whole unit needs to be replaced. The fan and housing look over 50 years old - there's just no point in trying to mess with what you can buy new for $15.