Electrical Wiring for Light Fixtures and Three Way Switches
How to Wire Three Way Switches: Common Problems When Wiring 3Way Switches, Wiring Connections for 3Way Switches.
Guide to Wiring Connections for 3Way Switches
Electrical Question: We have 2 sets of 3 way switches. One controls the top and bottom of our stairwell, the other controls our kitchen lights.
- Both seem to have the same problem (making me wonder if its really just a defective switch or something more). In both cases, if you switch on the light on one side, the other will not turn it off.
- Instead you get a blink and it stays on. You have to turn the light off at the original location. Please note that the top of the stairwell is on a switch plate with 2 others. The 2nd switch goes to another light in the adjacent room (a loft) and is a 2 way. The 3rd has served no purpose since the house was built 8 yrs ago.
- In addition, I’ve noticed that at times, the kitchen light, even when switched off, stays lit. I have to mess with the switches back and forth a couple times, then I can get it to turn off. This is not consistent.
- In the kitchen, I’ve at times heard a pop when turning on. From what I’ve read, it can be wires touching, or any number of other things.
I hope this gives you enough information. The reason I haven’t simply changed out switches is because it felt odd that I would have the same problem in 2 different locations in the house.
Any information you can offer would be very much appreciated.
This electrical wiring question came from: Carrie, from Concord, North Carolina.
Thanks for your electrical wiring question Carrie.
How to Wire Three Way Switches
- Skill Level: Beginner to Intermediate.
- Tools Required: Basic Electricians Pouch Hand Tools and Voltage Tester.
- Estimated Time: Depends on personal level experience and ability to work with tools.
- Precaution: Identify the light circuit, turn it OFF and Tag it with a Note before working with the wiring.
- Notice: Installing additional fixture wiring should be done according to local and national electrical codes with a permit and be inspected.
- Common Problems When Wiring 3Way Switches
- From what this question is describing it is possible that there may be an electrical connection problem either at one of the main switch junction boxes or at the electrical panel.
- When light fixtures stay on even when the switch is OFF may indicated a bad light switch where the set of contacts are stuck together, this is rare but could happen.
- If the light fixture is switched OFF and the light is dimly lit then this is a problem with the electrical wiring system where there is a problem with a connection or most likely a problem at the electrical panel.
- I do not recommend homeowners perform any work in their electrical panel.
- Experienced or qualified electrical contractors will be able to make a few tests and find and correct the problem to avoid further complications.
More about Wiring or Replacing 3Way Switches
Wiring a Light Switch – Diagram 1
Switch Wiring Diagrams
Fully Explained Light Switch Wiring Diagrams. Detailed Electrical Wiring Diagrams and Pictures assist your Home Electrical Projects.
3 Way Switch Diagram
In response to the requests for this information, I have developed a comprehensive,step-by-step guide designed to walk you through the identification and wiring of your 3-way switches.
Kitchen Electrical Wiring
Fully Explained Photos and Wiring Diagrams for Kitchen Electrical Wiring with Code Requirements for most new or remodel projects.
Testers to Help Solve Electrical Problems
Consult your Local Building Department about Permits and Inspections for all Electric Wiring Projects.
The Safest Way to Test Electrical Devices and Identify Electric Wires!The Non-Contact Electrical Tester
This is a testing tool that I have had in my personal electrical tool pouch for years, and is the first test tool I grab to help identify electrical wiring. It is a Non-contact tester that I use to easily Detect Voltage in Cables, Cords, Circuit Breakers, Lighting Fixtures, Switches, Outlets and Wires. Simply insert the end of the tester into an outlet, lamp socket, or hold the end of the tester against the wire you wish to test. Very handy and easy to use.
The Quickest Way to Check for Faulty Electrical Wiring!The Plug-In Outlet Tester
This is the first tool I grab to troubleshoot a problem with outlet circuit wiring. This popular tester is also used by most inspectors to test for power and check the polarity of circuit wiring.
It detects probable improper wiring conditions in standard 110-125 VAC outlets Provides 6 probable wiring conditions that are quick and easy to read for ultimate efficiency Lights indicate if wiring is correct and indicator light chart is included Tests standard 3-wire outlets UL Listed Light indicates if wiring is incorrect Very handy and easy to use.
Strip Off Wire Insulation without Nicking and Damaging the Electric Wire!The Wire Stripper and Wire Cutter
My absolute favorite wire stripping tool that I have had in my personal electrical tool pouch for years, and this is the tool I use to safely strip electrical wires.
This handy tool has multiple uses:
The wire gauges are shown on the side of the tool so you know which slot to use for stripping insulation.
The end of the tool can be used to grip and bend wire which is handy for attaching wire onto the screw terminals of switches and outlets..
The wire stripper will work on both solid and stranded wire. This tool is Very Handy and Easy to Use.
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