Black Screw On Three Way Switch. Remove mounting screws and gently pull the switch out of the wall box. Three-way light switches control a light from two locations, such as from both ends of a staircase or hallway.
I have a three way switch which has a green screw and a black screw and three brass I don't know which one is which. The black screw is the common, which we identified in the steps above as the switch leg or hot(power source). It may be a different colored screw (usually black, while the others are brass colored), or there may be a.
Step-by-step instructions and troubleshooting There are three screw terminals on the sides of the switch and one on the end.
It may be a different colored screw (usually black, while the others are brass colored), or there may be a.
First, bend hook in the ground wire, wrap around the green screw. The best example of this would be at either end of a long hallway, or at the top and One of the three terminals is "identified" (by using a different color) and is usually the bottom screw on the side with two screws. Attach the black power cable (from the wall) to the general screw (black) in the three-way light switch.