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Wall sockets come in a standard 120 volt receptacle. They hold two plugs at a time. The sockets do not often fail, but when they do, you will need to replace them.
A single-pole switches control lights, and socket receptacles. They control if electricity flows to the lights or sockets, which determine if your lights are on or off. Again, these do not fail often, but you will need
to replace them when they do. Here are directions on installing sockets and switches. Make absolutely sure you turn off power to the switch or socket before you start your repairs.
1. Replace socket
First, remove the cover plate with a screwdriver and loosen the mounting screws. Pull out and remove the wires from the old socket. Take the old socket off, making sure not to yank any wires away. Put the new socket in
place and start connecting the wires. Connect the black wire to the brass screw, the white wire to the silver screw, and the green wire to the green screw. Make sure the screws are tight, and replace the cover plate. Tighten
the cover plate, and test the new socket.
2. Replace switch
First, remove the cover plate and set it aside. Pull the switch out, so you can see the wires. You want to test the switch for continuity. This will tell you if the switch is working or not. Take the continuity tester, and place the probe on one terminal, (brass, or white). Take the clip of the continuity tester and put it on the other terminal. Then, flip the switch off and on. The tester should light up only when the switch is on. If that is not the case, replace it. If it is the case, but you are not getting
power, you have a problem with your wiring or circuit box. Call an electrician.
To replace the switch, buy a new one with the same voltage as the last. Remove the wires from the old switch and throw it out. Take the new switch and put it in place. Then, connect the wires, again, black wire to the brass
screw, the white wire to the silver screw, and the green wire to the green screw. Make sure the screws are tight, and replace the cover plate. Screw it in, and make sure the new switch works.