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Electrical Wire and Cable

How to Solve Light Fixture and Switch Wiring Problems

By Dave Rongey - Summary:

Andy in New York asks: How do I fix a problem with a light I am trying to install? Wiring Connections for Light Fixtures and Switches.

Wiring Light Fixtures and Switches

Electrical Question: Andy in New York asks: How do I fix a problem with a light I am trying to install?

Not sure what to try next, any help would be greatly appreciated!

This electrical wiring question came from: Andy, a Student from Nesconset, New York.

Dave’s Reply:
Thanks for your electrical wiring question Andi.

How to Wire Light Switches and Occupancy Sensors


Application: Troubleshooting and Testing Light Switch Wiring.
Skill Level: Intermediate to Advanced.
Tools Required: Basic Electricians Pouch Hand Tools and a Voltage Tester.
Estimated Time: Depends on personal level experience, ability to work with hand tools and electrical troubleshooting skills.
Precaution: Identify the circuit, turn it OFF and then Tag it with a Note before performing any wiring or inspections.

Wiring Connections for Light Fixtures and Switches

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FAQs Frequently Asked Questions and Comments

2 Responses to “How to Solve Light Fixture and Switch Wiring Problems”
  1. Dave Rongey says:

    Hi Quel32,
    When there are several cables and wires we typically use a voltage tester to identify the wiring. Keep in mind that the wiring may be used for the following purpose: The incoming power source, wiring to or from a wall switch, and wiring leading to the other light fixtures or outlets in the general area. In some cases when the wiring configuration is unknown it is helpful to use a continuity tester with the circuit power turned off. This will help us to help identify lights, switches, wall outlets, and other electrical devices which may be connected to the junction box wiring.
    Thank you for sharing your electrical question with us,

  2. Quel32 says:

    I am trying to install a ceiling fan with a light. I have 4 wire bundles which are for the outside light, inside light, and a dimmer switch. In the ceiling there are 4 black, 4 white, 4 bare wires how do I connect 2 black have power?