What does C mean on back of light switch?
What does C mean on back of light switch?
A one way light switch has two terminals which is a common marked as COM or C. The common is for the live wire that supplies the input voltage to the switch. The other terminal is marked as L1 and is the output to the light fixture. This is because two way switches can also be used on one way circuits.
Does it matter which black wire goes where when changing a light switch?
Properly you should have a black always hot wire bringing power in and a red wire going to the light. Red means the line may be switched. Sometimes electricians go cheap and use black instead of red. If your switch has a “LINE” marking, the always hot wire goes to this.
What is 1/2 C on a light switch?
The “C” terminal is the “Common” of the single pole double throw switch. and “1” and “2” are the two sides.
What happens when you replace a light switch?
Tim, you obviously changed the wiring configuration when you replaced the switch. The following wiring in the switch box will need to be identified: The Source Power In, The Power Leading Out to other areas, and the Switch Wires leading to the Light and Fan.
Why is my light switch not working properly?
Finally, your malfunctioning light switch could be the result of a fault circuit cable. You can use a circuit tester to assess your light switch and see if there are any interrupted connections causing your light switch to not work properly.
Do you need a permit to replace a light switch?
Notice: Installing additional fixture wiring should be done according to local and national electrical codes, however replacing a light switch does not require a permit in most locations.
Why is my bathroom light not working right?
Tim, a Homeowner in Minnesota asks: I replaced a double switch for a light and fan in my bathroom and now when I turn off the bathroom light (only) it turns off all power to the adjoining bedroom and to the lights only in the laundry room that is directly below. The light is not working right. Why is this happening and how do I fix it?
Tim, you obviously changed the wiring configuration when you replaced the switch. The following wiring in the switch box will need to be identified: The Source Power In, The Power Leading Out to other areas, and the Switch Wires leading to the Light and Fan.
How can I troubleshoot a faulty light switch?
If you have a screwdriver, voltage tester, insulated pliers and a wire connector you can troubleshoot your light switch to determine the problem and, if necessary, replace the switch. Light switches are inexpensive, and take only a small amount of time to replace.
Notice: Installing additional fixture wiring should be done according to local and national electrical codes, however replacing a light switch does not require a permit in most locations.
How to replace a single pole light switch?
Here is how to replace or install an old single-pole light switch with new one: 1 After shutting off the power to the switch, use a screwdriver to remove the plastic faceplate and to unscrew the existing switch from the electrical box. Pull the switch outward without touching any bare wires.
