I have a 12v extractor fan (it says 12v on it although it's wired into the
mains) in the loo which used to work fine, then it started buzzing when
switched on and didn't start turning straight away, and now it doesn't work
The fan unit does not appear to be getting current but I can't decide where
the transformer is which provides the 12 volts. Presumably not in the fan
unit (electrical safety). And it doesn't seem to be in the switch unit.So
it's difficult to see where the failure is.
Any suggestions, anyone?