Three Way Light Switch Not Working

The switch at the entrance to the hallway the dimmable one will turn on the light.

Three way light switch not working.

When your three way light isn t working and you have ruled out problems with the bulb outlet cord and plug replacing the three way switch can be done quite inexpensively by any relatively handy. Touch the probes to the 3 wires removed from the switch until you get a reading on the tester indicating continuity. Toggle each switch until the light come on. Two common screws and two brass screws not counting the ground screw.

Four way circuits are just a tad different than three way circuits mostly since the light switch that you add in has to be a four way switch rather than just another three way switch. The dang 3 way switch isn t working. A four way switch has an extra common screw to bring the total number of screws up to four. We have two three way switches we think at either end of our hallway.

Scott first gives an explanation of the three way switch two switches that control one light fixture. The other is not. One of the switches is a dimmer switch. Locate a bad 3 way switchusually when a 3 way switch fails lights can be toggled on and off at one switch but not the other if one of the two 3 way switches toggles the light s on and off the other 3 way switch has probably failed follow these steps to find which switch is bad.

When a white wire is attached to a 3 way switch a tester may not read the power because of the position of the other 3 way switch. These are the runners of the circuit. So to turn the light on she carefully negotiates the stairs to the top and flips on the switch. The third wire is the common wire that feeds the light fixture and is connected to the black screw on the switch.

Short circuit in electrical wiring. There are many ways that a three way switch can be wired but usually power or the light fixture connect to the load side of the switch and traveler wires run between traveler screws on both switches. Then we go to the end of the hall and turn off the light. 3 way circuits can be a formidable opponent.

That s just not the way it s supposed to be is it.