Humming extractor transformer (with timer) for bathroom fan - Just replace with a new unit?
yes, bearings gone, blades covered in your body detritus
It's the transformer that's humming, not the fan - it's more likely to be an sparking flameball that leave a charred husk, rather than exploding blades leaving a minced quivering mass.
So - new transformer then?
@rive_gauche started
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Humming extractor transformer (with timer) for bathroom fan - Just replace with a new unit?