fan problem

[wilsonstaff]

HI
I'm not sure where this question goes but its powered by electricity so i'll try here.
I have a small fan in the ceiling of my bathroom,which comes on when you switch the toilet light on and goes off a minite after the light is switched off, i think the fan sucks up condentation when you run a bath.

The fan is working fine, except i can here a humming noise a while after its been off, anyone got a suggestion, i was gonna clean it inside,done this in the past over the years.

Cheers
WS

 

[jj4091]

Do you mean it continues to run for a few minutes after you turn it off, or that the fan hums after it has stopped running?

 

[wilsonstaff]

It seems to hum after the fan has stopped.

 

[jj4091]

If the fan is installed with a triple pole switch you should be able to isolate the permanent live supply as well as the switched live from the light switch. Turning this off will completely isolate the fan & if the humming stops, prove that it is the fan is probably beginning to fail. Even if you cannot completely isolate it, I would think that the humming is coming from the timer part of the fan & again probably has a limited life expectancy.