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-   -   How can I find out which outlet a wall switch operates? (http://www.diychatroom.com/f18/how-can-i-find-out-outlet-wall-switch-operates-174320/)

tom36 03-12-2013 07:39 PM

How can I find out which outlet a wall switch operates?
 
How can I find out which outlet a wall switch operates? I have a room with a wall switch that is suppose to operate one of the outlets. However, I have not be able to figure out which outlet. The switch has a single romex line with white, black, red and ground wires. The black is connected to the bottom terminal, the red to the top, and the ground is connected to the green terminal. The white wire is not connected to anything.

EBFD6 03-12-2013 07:47 PM

Most likely only half of the receptacle is switched. With the switch in the off position go to every outlet and see which one doesn't have power. Check both the top and bottom of each outlet.

daveb1 03-12-2013 07:51 PM

With the switch in the off position, plug a lamp or radio into the recepticles in that room. Be sure to try both halves of each recepticle as it is possible that only one side is switched. When you find where the lamp or radio doesn't work, leave it plugged in and try the switch.

joed 03-12-2013 08:14 PM

If someone changed a receptacle that was supposed to be half switched and did not break the tab then none of them will be switched. If you can not find a switch one then turn off the power and remove the receptacles. Look for the tab between the black and red wire to be cut.

oh'mike 03-12-2013 09:00 PM

Quote:

Originally Posted by joed (Post 1135844)
If someone changed a receptacle that was supposed to be half switched and did not break the tab then none of them will be switched. If you can not find a switch one then turn off the power and remove the receptacles. Look for the tab between the black and red wire to be cut.

The simple way to figure out if a tab was not removed?

Put a tester on the bottom screw of the switch---in the 'off' position-
then test the top screw---

if both are hot when the switch is off----you have the switch leg getting power because an outlet did not have the tab broken off.

Jim Port 03-12-2013 10:00 PM

Without the white connected the receptacle will not work or someone miswired it.


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