After you do this remove the switch cover plate and test the wires with a voltage tester for safety. To replace this kind of switch follow these steps.
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How to change a light switch with 4 wires. Unscrew the switch from the electrical box and pull it out with the. Identify the three different colored wires and attach the new light switch to the wires in the same way they had been attached to the old switch. An incoming hot wire which is black. Two or three wires will be attached to the switch. Unscrew and remove the switch plate. Light switches operate by providing an operational break in the hot circuit wire leading to a light fixture or other device.
Flipping the switchs lever opens and closes the hot wire circuit leading to the light fixture allowing you to turn it on and off at will. 4 way switch wiring. Turn off the power to the switch at the main circuit breaker or fuse panel. Fully explained 4 way switch diagrams. Turn off the power to the switch at the circuit panel or fuse box. Youll need access to the white neutral wires.
4 way switches are a convenient way to operate lighting fixtures from three or more locations. When more than three switches are needed you may simply place more 4 way switches between the three way switches. Then use a voltage tester to make sure that the circuit is dead. Now that the light switch is completely removed well need to prepare for the installation of the combo switch. Most 4 way switch wiring is placed between the wiring of two 3 way switches. Turn on the switch then place one lead of the tester on either of the black wires connected to the switch and the other lead on the green ground screw.
If any of the wires seem weakened trim and re strip the end of the wire to meet your needs. Then use a voltage tester to make sure that the circuit is dead. Unscrew the switch from the electrical box and pull it out with the wires still attached. A return wire which carries the load to the fixture and may be black red or any other color except green. How to replace a four way light switch. Unscrew and remove the switch plate.
The black wire is going to be connected to the black screw on the switch. The main wire that will go from one switch to the other should have 4 wires total black white ground and red. Normally when you replace a light switch you would leave the neutral wires alone but in this case well be connecting them to the new combo switch. If you get a light or a non zero meter reading the circuit is live. Review the diagram below for basic three way wiring instructions. Inspect the quality of the wires.
Gallery of How To Change A Light Switch With 4 Wires
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