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Old 03-24-2010, 08:58 AM   #1
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3 way switch question


I have a three-way switch lighting a light on a staircase. Switch at the top and bottom of the stairs. I had it disconnected. I believe that it was originally powered from another switch in the same box located at the bottom of the stairs. I am re-wiring and trying to figure out how to wire it back up. Currently this is what I have, the three way switch at the bottom of the stairs that shares a box with a switch that lights another room (this is where I believe I was getting power from), I then have a 14/3 run up to the switch at the top of the stairs, from there I have a 14/3 run to the light above the stairs that lights the stairs. What is the correct way to wire the three-way from the power on the downstairs switch and control the light from both locations? Drawing a blank. Thanks

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Old 03-24-2010, 09:30 AM   #2
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3 way switch question


If incoming power is in the downstairs light switch box connect the incoming power (Hot) to the common of the downstairs 3-way. Then a 14/3wg to the upstairs switch then a 14/2wg to the light. Make it look like this ... you may have to use a pigtail since two switches are sharing the incoming power hot. All the whites in a wirenut by themselves and and grounds in a wirenut by themselves with pigtails to the switch ground screw and to the metal box if it is metal.
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Old 03-24-2010, 10:39 AM   #3
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thanks stubbie for the diagram it makes it easier to visualize. So since there is another switch in downstairs box, next to the three-way, that is where I am going to get power from. The hot is going to have to be pigtailed going to the regular switch and then to the common on the three-way?
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Old 03-24-2010, 11:05 AM   #4
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3 way switch question


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Originally Posted by bfan781 View Post
thanks stubbie for the diagram it makes it easier to visualize. So since there is another switch in downstairs box, next to the three-way, that is where I am going to get power from. The hot is going to have to be pigtailed going to the regular switch and then to the common on the three-way?
Yes your going to take the incoming hot wire, one wirenut and two pigtails about 5 inches long and connect all three in the wire nut then connect one pigtail to the single pole switch and one to the 3 way switch common screw (dark colored one) then just follow the diagram.
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Old 03-24-2010, 11:57 AM   #5
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Gotcha! Thanks again
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