Timer fan off a dimmer switch?

[GBDamo]

Has anyone done this successfully and if so how.

I've read that fans run off the perm and use the switches as a trigger so assuming the dimmer outputs sufficient voltage to trigger the fan it should work, but in reality will It?

 

[telectrix]

you might just have reinvented the fan speed controller.

 

[GBDamo]

you might just have reinvented the fan speed controller.

No, the fan runs off the perm live, not dimmed switch live, or so I've been lead to believe.... but then thats why I'm asking.

 

[pc1966]

Its a very odd thing to do. How many bathrooms have dimmable lights?

 

[telectrix]

Its a very odd thing to do. How many bathrooms have dimmable lights?

ours do.the cobwebs act as diffusers.

 

[GBDamo]

Its a very odd thing to do. How many bathrooms have dimmable lights?

None that I have seen, bosses wife want dimmable lights in the bathroom tough.

 

[pc1966]

Fair enough then!

 

[James]

Think it might be a case of try it and see.
Alternatively try manufacturers instructions

Finally if no joy, you could run the fan off an occupancy detector

 

[freddo]

The old MK rollover dimmers used to have a switched, non-dimmed terminal! Some remote dimmers such as Taptile also have both dimmed and non-dimmed outputs. As the input is just a trigger it will probably just work. Some electronic dimmers might hold the timer on all the time though if the timer input is sensitive. In normal electronics you'd use a pull down resistor to sort that problem!

 

[suffolkspark]

I've come across it in a house once, works fine but you have to turn the lights on with a bit of brightness for the fan to see the trigger, then can dim them, but if you dim too far the fan will time out

So it does work, but not very well

Zano dimmers have a switched undimmed output on their 1-10v grid dimmers, but that's only gonna help if youv e got 1-10v dimmable lights