How to wire 3 switches to 1 fan ?

07-16-2009, 02:27 PM	#1
yddkdd Newbie   Join Date: May 2009 Posts: 6	How to wire 3 switches to 1 fan ? 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 ?

Warning: The topics covered on this site include activities in which there exists the potential for serious injury or death. DIYChatroom.com DOES NOT guarantee the accuracy or completeness of any information contained on this site. Always use proper safety precaution and reference reliable outside sources before attempting any home improvement task!

07-16-2009, 02:51 PM	#2
joed Member     Join Date: Mar 2005 Location: Welland, Ontario Posts: 6,037	How to wire 3 switches to 1 fan ? 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. __________________ Do not PM with questions that can be asked in a forum. I will not respond.

07-16-2009, 02:59 PM	#3
yddkdd Newbie   Join Date: May 2009 Posts: 6	How to wire 3 switches to 1 fan ? Thanks. I've never tried that before. I found a nice explanation here. Thanks again!

07-16-2009, 03:08 PM	#4
Yoyizit It was a dark and stormy     Join Date: Jul 2008 Location: NW of D.C. Posts: 5,954	How to wire 3 switches to 1 fan ? xxxxxxx Last edited by Yoyizit; 07-16-2009 at 03:11 PM.

07-16-2009, 03:10 PM	#5
Yoyizit It was a dark and stormy     Join Date: Jul 2008 Location: NW of D.C. Posts: 5,954	How to wire 3 switches to 1 fan ? Quote: Originally Posted by yddkdd 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. Last edited by Yoyizit; 07-16-2009 at 03:13 PM.