Making Changes to Wall Switch Wiring
Changes have been made to the wiring to a switch, and now when the switch is turned off the power also goes off to all the outlets in another room. How can this be corrected? Common Problems When Wiring Wall Switches and Outlets and How to Fix Them.
Wiring Wall Switches and Outlets
Electrical Question: Changes have been made to the wiring to a switch, and now when the switch is turned off the power also goes off to all the outlets in another room. How can this be corrected?
- I have power coming in from the breaker box, this wire is hooked into a light switch which controls the ceiling light, then the power travels to the next room.
- When we turn the switch off, it turns off the power in the next room, outlets and all.
- Some one told us to install a jumper wire.
- I am unsure of how this jumper wire method is done.
- None of the diagrams I find really fit my scenario, or I don’t know how to apply them to my circuit.
- The circuit has power, a light switch, a ceiling light, outlets and ceiling fan in that order.
Thanks so much for your help!
This electrical wiring question came from: Monika, a Homeowner from Novinger, Missouri.
Additional Comments: Great pictures & simple directions!
Thanks for your electrical wiring question Monika.
How to Connect Wiring for Wall Switches and Outlets
Skill Level: Intermediate to Advanced – Best performed by a Licensed Electrician.
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 with a permit and be inspected.
How to Fix Common Problems When Wiring Wall Switches and Outlets
- Identify the Circuit Wiring
The circuit wiring must be identified in order to make the correct wiring connections to obtain the isolation between the switches and light fixtures and the wall outlets. The following will describe the individual wires that are commonly found in switch and outlet circuit wiring.
Basic Home Electrical Circuit Wiring
- The Power Source – Line Power In
For each electrical box within the circuit there will be a cable that is the Power Source. The power source may be directly from the panel, or it may be from another electrical box within the circuit.
- Branch Circuits and Power Out
If the circuit is a Branch Circuit, and the circuit wiring will branch out to other devices which are also connected to the circuit then the electrical box will have one or more cables that provide the Power Out.
- Switch Cables and Wiring
Depending on the location and application, many general purpose 120 volt circuits rated at 15 or 20 amps may have a mixture of both lights and receptacle outlets on the same circuit. Wiring for a switch is basically a loop of wire with a switch placed in the middle. Typical single pole, 3Way and 4Way switches do not require a Neutral Wire, however the White Wire of a cable may be used for switching the power leg of the circuit and should be marked or identified with black electrical tape or a black permanent marker.
- Switch Wiring for Light Fixtures
The Power Source for light fixtures will either be located in the light fixture box, or in the switch box. The location of the power source will affect how the neutral wires are connected for the light fixture.
- Power Source at the Light Fixture
If the power source is in the light fixture box then the white neutral wire of the light fixture will connect to the white wire of the power source.
- Power Source at the Wall Switch
If the power source is in the switch box then the white neutral wire of the cable leading up to the light fixture will connect to the white wire of the power source.
- Power Source at the Light Fixture
- The Ground Wire
The most important wire of any circuit is the ground wire, which is the circuit equipment safety wire. The ground wire is connected to the main electrical panel where the main grounding system is located and connected to the earth. All of the ground wires of the circuit must be connected together to maintain the integrity of the ground throughout the circuit. Wires from the spliced connections of the ground wires are connected to fixtures, ceiling fans, switches and receptacle outlets, or any other device that is connected to the circuit which has a ground lead wire or a ground screw where a ground wire connected.
More about Electrical Wiring for Outlets and Switches
Wiring Diagrams for Wall Switches
Light Switch Wiring
Fully detailed pictures and wiring diagrams about wiring light switches describing the most common switches starting with photo diagram 1.
Wiring Diagrams for Outlets
Wiring Electrical Outlets
Home electrical wiring includes 110 volt outlets and 220 volt outlets and receptacles which are common place in every home. See how wiring electrical outlets for the home are done.
Home Electrical Wiring
Home electrical wiring projects with pictures and wiring diagrams.
Wiring Diagrams for Switches and Outlets
Wiring Diagrams Directory
A listing of wiring diagrams for switches and outlets.
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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