Causes of Lost Power to GFCI Outlets


By Dave Rongey - Summary:

Why does my GFCI Outlet Circuit Loose Power? Troubleshooting a Bad GFCI Outlet, Testing and Replacing a GFCI Outlet.


How to Fix a GFI Outlet

Electrical Repairs: Why does my GFCI Outlet Circuit loose power?

This electrical question came from: Bruce, a Homeowner from Edna, Texas.

Dave’s Reply:
Thanks for your electrical repairs question Bruce.

Troubleshooting a Bad GFCI Outlet

Application: Wiring or Replacing a GFI Outlet
Skill Level: Beginner to Intermediate.
Tools Required: Basic Electricians Pouch Hand Tools and a Voltage Tester.
Estimated Time: Depends on personal level experience, ability to work with tools and the number of outlets that will be replaced.
Precaution: Identify the outlet circuit, turn it OFF and Tag it with a Note before working with the wiring.
Notice: Installing additional GFCI outlet wiring should be done according to local and national electrical codes with a permit and be inspected.

Testing and Replacing a GFCI Outlet

More about Wiring GFCI Outlets

GFCI Outlet Wiring

Lost Power
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Wiring GFCI Outlets
Wiring Home Electrical Circuits
120 Volt and 240 Volt Outlet Circuits
Wiring 3-Wire and 4-Wire Electric Range
Wiring 3-Wire and 4-Wire Dryer Cord and Dryer Outlet
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Be Careful and Be Safe - Never Work on Energized Circuits!
Consult your Local Building Department about Permits and Inspections for all projects.

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FAQs Frequently Asked Questions and Comments

2 Responses to “Causes of Lost Power to GFCI Outlets”
  1. Dave Rongey says:

    Hi David,
    How to Identify the GFI Line Cable Circuit Wires
    If the incoming circuit cable has not been identified then the electrician uses a voltage tester to test the circuit wiring. When wiring a GFI outlet it is essential to have the correct Line and Load wiring configurations, otherwise the GFI outlet will not work right, and the additional outlets wired into the circuit will not have GFCI protection.
    I hope this helps,
    Dave

  2. David Bartilson says:

    I’m replacing a duplex receptacle with a GFI with another duplex receptacle to be protected. It’s not working. I think the problem is determining which of the lines coming into the initial box where the GFI goes is hot. How do I identify which is the hot line coming in?
    Thanks!

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