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# replacing light switch unsure about wiring

Wed 17 Feb, 2016 03:20 pm
I am trying to replace a dimmer switch that quit working in my bedroom. I want to replace it with a basic single pole light switch. I'm not sure which wire is which, and whether or not there is a ground or not.

When I pulled the old dimmer switch out it had two wires coming out of it. Coming out of the wall there are 3 wires that I will refer to as A, B and C. They are all the same color. One one side we have A which was connected to one of the wires coming out of the dimmer switch. On the other side we had B and C braided together and connected to the other wire coming out of the dimmer switch.

Before shutting it off at the circuit box I tested them with a voltage tester. One of the braided wires registered a current. That is A and B showed no current and C was live.

Is one of these the ground? How should I go about connecting the new switch? The new switch has points to connect two black wires and one ground wire. Any help will be greatly appreciated. Thanks!
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dalehileman

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Thu 18 Feb, 2016 11:29 am
@macksmose,
Mack sorry nobody helping hya but we're not quite sure which wire is doing what. If B and C were braided together we might suppose one is neutral and the other is ground. However usu the ground is connected to the body of a switch, so we might conclude that A is the hot wire. Still you later go on to assert, "C was live," leaving us in a sort of quandary

But you go on to say that measurement showed "one of the braided wires registered a current," so we would wonder if you were actually measuring a current or a voltage. If a current, you must have disconnected the tie and measuring the current between the two, further confirming the notion that one is ground and other neutral; since a slight voltage would usu be found on neutral

So Your first two paras are prefectly clear but then if you were really measuring between B and C, then either one would register a current. So some of us conclude by "current" you must mean "voltage."

Finally if you found "C was live," and if by "live" you mean showed a high voltage,then you must have first disconnected it from B, which raises the q as to which wire, A or B, you were measuring it with respect to

Thus if you could provide some clarifying detail we might be able to advise you; tho most others here will recommend an electrician, however prohibitively expensive. No offense ack but please don't electrocute yourself
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