Dimmer switch issue

[DominicFlem]

Hi all,

I have an issue with my bathroom dimmer switch. The issue is that there is a humming/buzzing noise coming from one of the lights. Even after replacing the lightbulb several times and removing it completely - when the dimmer switch is turned as far right as possible, the buzzing starts again. This must be a problem with the dimmer switch? Or is that an electrical fault?

Any advice would be great.

Thanks!

 

[timhoward]

Do you have a fan in your bathroom too? Are they they low voltage lights? Working out what is making the noise is step one and I’m wondering if it’s a transformer or a fan.