3 Way Switch With Pass Through Power Connection Issue - Electrical - DIY Chatroom Home Improvement Forum

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Old 09-28-2010, 02:05 PM   #1
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3 way switch with pass through power connection issue


I had decided to change my dining room light from a single to a dual switch. The switch locations were on opposite sides of the room, so I decided to hook it up using a circuit where the light was in the middle.

I opened up the light box, and was surprised to see not only the original switch, but 2 other connections in the box. I cannot see the entire circuit for either connection, but one has to be the power, and there is another that continues on to connect with my kitchen light circuit. I will call this one other.

The way it was wired (when everything worked):

switch black to light black.
power white to other white to light white
power black to other black to switch white.

I have successfully gotten both of the 3 way switches to work perfectly, having been very happy about this I started putting things away, etc, but come to find out that the kitchen lights no longer work.

What I did to wire the 3 way switches was:

switch A red to switch B red
switch A white to switch B white (both taped black)
Power black to other black
Power white to other white to light white
Switch B black to light black

My question is, is although this works for my 3 way switched, is this correct, or is this somehow throwing off the power connection to my kitchen lights (along the "other" cable)?

When I check the power/other black connection and power/other white connection with my voltage meter it has power. However when I check the other end of that cable, it does not. I don't see anything wrong with the cable itself.

Thanks for any help.



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Old 09-28-2010, 02:30 PM   #2
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Power black also needs to go to switch A black along with other black.


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Old 09-28-2010, 02:38 PM   #3
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My apologies, that is the way I have it. Switch A black is connected to power black and other black.

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