How do you troubleshoot a 3-way light switch?

How to Troubleshoot a Three-Way Switch

  1. Toggle the first switch. Turn the light on.
  2. Toggle the second switch. If you can turn the light on and off with this switch, this means that the switch is working.
  3. Now go back to the first switch. Turn it on and off.

Can a dimmer be used on a 3-way switch?

With a three-way dimmer, you can control a light with two switches. You will need a three-way dimmer and a three-way switch. This lets you dim from one location and turn the lights on and off from another. If two switches control a single light or a group of lights, you will need a three-way dimmer.

What is the common wire on a 3-way light switch?

Black wire
Black wire: This is a hot wire that carries electricity from the power source to the first switch in a typical 3-way setup. It’s also called the “common wire” or the “line wire.” Unless the breaker is off, this black wire is always hot.

Does Kasa make a 3 way dimmer?

Kasa Smart provides a full suite of Wi-Fi switches, from dimmers to 3-way switches, that work together with the Kasa Smart app to design the best lighting for any occasion. Even set schedules to make it look like you’re home when you’re not.

How do you fix a dimmer switch?

Push the wires inside the wall box carefully as you fix the new dimmer over it. Screw the dimmer onto the wall terminal with the 2 screws from the previous switch. Screw the dimmer cover plate to the wall using the other 2 screws. Attach the dimmer knob or other dimming device onto the metal protrusion.

Why is my dimmer switch not working?

A common problem with a dimmer switch that does not dim the lights is that the user has switched from incandescent lights to compact fluorescent or other types of energy saving lamps. Older dimmer styles are not compatible with the newer lamps and often do not work at all.

How to replace a dimmer switch?

Turn off the power to the switch at the circuit or fuse panel.

  • Unscrew and remove the switch plate; 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.
  • Remove the wires from the old switch.
  • Why would a dimmer light switch stop working?

    Surges or even a light blowing that is controlled by the dimmer can cause their failure. It still works as a switch because simply put there is a switch internally. When you move the dimmer to off this switch opens and cuts power to the dimmer circuitry and the light.