Bathroom fan on a dimmer sith leds.

[i=p/u]

Fitted a fan for friend today and forgot it was off the lights, so now is on dimmer and seems to work fine. I see Amazon sell plug in dimmers for fans ..
thoughts men??

 

[westward10]

No idea what you are getting at.

 

[Dave OCD]

He's saying the switched live to the fan will reduce in voltage as the lights are dimmed. But I wonder if that's just for the timer circuit and the permanent live runs the fan motor.

 

[i=p/u]

No timer on the fan, the switched live from lights is powering fan.

 

[westward10]

What is it you are wanting to know.

 

[DefyG]

If the dimmer is slowing the fan then it may be totally ineffective as a fan (ie ltrs/min reduced) and you may as well not have one at all!

 

[Dave OCD]

I would have thought below a certain voltage the fan motor would just stall.

 

[DJAndy]

Depending in the make & model trigger voltages can be quite low. I've seen bad switches passing ~ 50v, as long as the perm live is normal the fan starts & runs happily.

 

[i=p/u]

Total load including fan is only 50w. What I'm asking westward, is can you see any likely problems coming from this bathroom fan with no timer on a dimmer switch?

I can move cable and maybe add in pull cord

 

[Dave OCD]

I think I'd put the fan on a separate pull switch, better for the motor and added convenience for the end user.

 

[Dave OCD]

Depending in the make & model trigger voltages can be quite low. I've seen bad switches passing ~ 50v, as long as the perm live is normal the fan starts & runs happily.

This isn't relevant as we're not talking about a timer fan in this instance.

 

[i=p/u]

Just throwing it out there, I knew had to change it.

 

[i=p/u]

I would have thought below a certain voltage the fan motor would just stall.

Didn't seem to struggle, slow fast

 

[DefyG]

Didn't seem to struggle, slow fast

Did you test it with an anemometer, I'm sure you'll see the difference!

 

[i=p/u]

Defyg your off the rictor, the dimmer does control the fan, but isit a good idea or not. Il likely change it tomorrow if I have dp pullcord about me

 

[DefyG]

Defyg your off the rictor, the dimmer does control the fan

Im sure it does but any speed variation will after the extract rate which also isn't a good idea.

 

[stevethesparks]

i=p/u are you related to Buzz

 

[i=p/u]

Dont really care about extract rate, was just wondering would the motor burn out or would it not, wood the dimmer burn out would it not..

As said you can buy universal plug in fan controllers for fans with no settings, was thinking its simialar...

 

[littlespark]

Just read the title of this thread and thought....

Sith....

Dimmer sith....