J

Jess5112

Hi there
Not sure I am posting in the right place so apologies, you were all so helpful with a question I had last year so hope you can help with this one too! :)
There is an extractor fan in the bathroom which comes on when the light is switched on. When the light is switched off the fan stops running a few seconds later. However when the fan is off, it is still omitting a low buzzing, almost sounds like it’s still operating/trying to start up/sounds a bit like it’s taking off tbh but the sound is very low (much lower than when it’s on).
What could be causing this? Not sure if it’s signalling a fault/dangerous.
Any thoughts appreciated. Thank you so much :)
J
 
could be wind blowing in from outside.
 
Some are designed to remain on low until the humidity is low enough.
What is the make and model?
 

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Title
Extractor fan low buzzing
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UK Electrical Forum
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Jess5112,
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James,
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