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Old 07-16-2009, 01:27 PM   #1
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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 ?

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Old 07-16-2009, 01:51 PM   #2
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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.

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Old 07-16-2009, 01:59 PM   #3
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How to wire 3 switches to 1 fan ?


Thanks. I've never tried that before. I found a nice explanation here. Thanks again!
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Old 07-16-2009, 02:08 PM   #4
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How to wire 3 switches to 1 fan ?


xxxxxxx

Last edited by Yoyizit; 07-16-2009 at 02:11 PM.
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Old 07-16-2009, 02:10 PM   #5
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How to wire 3 switches to 1 fan ?


Quote:
Originally Posted by yddkdd View Post
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 02:13 PM.
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