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How To Troubleshoot Electrical Outlet Wiring Problems


By Dave Rongey - Summary:

How to Identify Electrical Wiring Problems with Outlets: Checking Outlet Wiring, Troubleshooting an Outlet Circuit.


Wiring Problems with Outlets that Do Not Work

Electrical Question: I have several outlets that are dead and not working.

  • There are five outlets on one circuit. The fourth outlet had power supplies for a cordless phone and charger plugged in.
  • The phone was not working, and I noticed charring on the face of the outlet cover plate.
  • The circuit breaker did not trip.
  • I inserted a circuit tester and had the lights indicate the Hot and Ground are reversed.
  • I have not worked on, or done anything with any of the electrical outlets on the circuit, however all outlets are dead, with the same indicator from the circuit tester.
  • Should all of the outlets be checked for loose wires, wires touching, etc.?

Background: Robert, a Homeowner from Virginia Beach, Virginia.

Dave the Electrician’s Reply:
Thanks for your electrical question Robert.

How to Identify Electrical Wiring Problems with Outlets

Preparation

  • Application: Troubleshooting and Repairing Outlet Problems.
  • Skill Level: Intermediate to Advanced – Best performed by a Licensed Electrician.
  • Tools Required: Basic Electricians Pouch Hand Tools, Voltage Tester or Volt Ohm Meter or plug-in circuit analyzer.
  • Estimated Time: Depends on the age of the home and the condition of the electrical wiring and access to the circuit wiring to be inspected, evaluated and repaired.
  • Precaution: Identify the outlet circuit at the electric panel, turn it OFF and then Tag it with a Note before performing any wiring inspections or electrical repairs. If an outlet or the electrical wiring is found to be damaged then repairs and replacement parts should be obtained with the same voltage and amperage rating.
  • Checking Outlet Wiring for Electrical Problems
    Yes Robert, every component of this circuit should be checked until the cause of the reversed reading is discovered.

    • This outlet circuit should be identified at the electrical circuit breaker panel and turned off to prevent damage to other devices.
    • Information that may help in the outlet electrical wiring troubleshooting process may be found in the listing below.
  • Troubleshooting an Outlet Circuit
    • Electrical troubleshooting for outlets is a process of elimination where components of the circuit are verified which helps to finally identify the problem and the make the necessary repairs.
    • It is very helpful to remove or unplug any devices that are connected to the outlet circuit. Inspections for damaged wiring should begin at outlets that are used for devices that require high amounts of electricity such as space heaters, humidifiers etc.

Repair Electrical Wiring
Troubleshooting

  • Troubleshooting and Repairing Electrical Wiring

  • Dave the Electrician explains the methods of Successful Electrical Troubleshooting Methods used to solve the majority of the home electrical problems and wiring failures encountered.

Troubleshooting Electrical Wiring

For more information about Outlet Wiring
Electrical Outlets

This link is helpful as a Homeowner
Do-It-Yourself Electrical

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FAQs Frequently Asked Questions and Comments

4 Responses to “How To Troubleshoot Electrical Outlet Wiring Problems”
  1. Dale Albrecht says:

    I had a GFCI outlet that quit working. The outlet was bad so I removed it. Now lights and outlets in part of the house do not work. I’ve checked the breaker and it wasn’t thrown and does have power going through it. When I test the wires coming to the outlet, I have no power. What’s the next step?

    • Dave Rongey says:

      Hi Dale,
      Troubleshooting a GFCI Outlet Circuit
      From what you have described, when you removed the faulty GFCI outlet the circuit electrical wiring which supplied power to the other lights and outlets has become disconnected. Therefore a replacement GFCI outlet must be installed to continue to provide important ground fault protection to the circuit and in turn provide the circuit power which has been disconnected to the other affected devices.
      Be Safe,
      Dave

  2. don gardne says:

    I cut the extension cord to my hedge trimmer and it was sparking, yet continued to run. I unplugged the cord at the outlet. The wires were severed and the hot (black) wire was fried and the insulation was cracked and brittle up to about 4 feet from the trimmer. The breaker did not trip. I checked the wiring to the outlet and used a circuit checker to confirm. It tested correct (both yellows lights, no red) I’m puzzled as to why I did not trip the breaker.

    • Dave Rongey says:

      Hi Don,
      I agree, the circuit breaker should have tripped off when the trimmer cord was cut. I would check the circuit breaker to make sure it is sized properly for the circuit wiring, and if the breaker appears to be correct then consider having the breaker replaced it with a new one. You may consider either replacing the circuit breaker with a GFCI breaker or install a GFCI outlet at the location the cord was plugged into. GFCI ground fault protection is of utmost importance when using electrical equipment outside.
      Be Safe!
      Dave


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