DIY Home Improvement Forum banner

How to wire 3 switches to 1 fan ?

1370 Views 4 Replies 3 Participants Last post by  Yoyizit
I have a whole house exhaust for my bathroom. I will be adding on to my home & putting in another shower and WC. I want to figure out how to have this fan turn on if ANY (and ALL) of the 3 switches are on, and therefore only turn off if ALL of the switches are in the OFF position. How can I do this ?
1 - 5 of 5 Posts
Wire all the switches in parallel. That way if any switch is on the fan will be on. ONLY if ALL the switches are off will the fan be off.
Thanks. I've never tried that before. I found a nice explanation here. Thanks again!
to have this fan turn on if ANY (and ALL) of the 3 switches are on, and therefore only turn off if ALL of the switches are in the OFF position.
It's an OR function, implemented as posted above.
". . .a logical operator that results in true whenever one or more of its operands are true."

The "and ALL" can be an AND function.

If you want control from all switches you need 2 ea. 3-way switches and a 4-way.
1 - 5 of 5 Posts
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.
Top