Interesting DIY find

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junkhound

junkhound

Senior Member
Location
Renton, WA
Occupation
EE, power electronics specialty
Those of you who do residential repairs probably see stuff like this everyday, but first time I've seen it:

Unused (except for some meetings) house owned by church. Was asked to look at why a receptacle sometimes was live when room light was on, and othertimes when only when the light was off.

In the distant past, (NM with a 14ga ground provided dating) the outlet was added and fed from the traveller of a 3-way switch !
Was a mystery to most folks, gremlins in the wall or some such.
 
If you change 3 way switches to maestro multilocation dimmers (or switches) you will get a permanent hot wire in both switch boxes. One traveler will be communication wire between blue terminals on devices and the other traveler your constant hot.
I did that recently. The next guy who will change devices will get a call back :roll:
 
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