Dimmer switch & Ventilation fan

[Buzzman]

Can I start a ventilation fan using the switched live from a dimmer switch?

 

[JUD]

If you mean a fan that has a timer over-run then yes although the fan might not start until the dimmer is turned up to a certain level.

 

[Buzzman]

Jud, Thank you.

 

[Widman]

In relation to the dimmer switch operating the ventilation fan, there are certain perameters which must be identified first, such as -- is it a multi-speed fan, is the wattage of the dimmer sufficient enough for the motor size. There does not seem to be sufficient enough information to answer the question properly.

 

[JUD]

In relation to the dimmer switch operating the ventilation fan, there are certain perameters which must be identified first, such as -- is it a multi-speed fan, is the wattage of the dimmer sufficient enough for the motor size. There does not seem to be sufficient enough information to answer the question properly.

In a fan with a timer over-run the switch live is only used to trigger the fan. The fan itself is powered by the permanent live so that it keeps running after the light is switched off.