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How to Rewire a Problem GFCI Outlet Circuit

Methods for Rewiring a GFCI Outlet Circuit: Ground Fault Circuit Protection for One or More Outlets, Wiring the LINE and LOAD Side of the GFCI, GFCI and GFI Wiring Diagrams.


Wiring a GFI Outlet Circuit

Electrical Question: I have a GFCI outlet in the garage that serves four outlets.

  • It gets tripped every time it rains because the 1st downstream outlet is outdoors, vulnerable to rain, and not well sealed because of brick and mortar issues.
  • I am trying to resolve these issues, but also want to install a GFCI at this outdoor outlet.
  • I want this new GFCI to control only itself, nothing downstream.
  • If I supply power to downstream 2,3,4 outlets from the line side of my new outdoor GFCI instead of the load side, will the original GFCI that is upstream still protect #2, 3, 4?

This electrical wiring question came from: Denny, from Rowlett, Texas.

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

Methods for Rewiring a GFCI Outlet Circuit

Preparations

  • 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 GFCI outlet circuit, turn it OFF and Tag it with a Note before working with the wiring.
  • Notice: Installing additional GFCI Circuit wiring should be done according to local and national electrical codes with a permit and be inspected.

Ground Fault Circuit Protection for One or More Outlets

  • GFCI Protection for One Outlet
    The electrical wiring for a GFI outlet circuit may be rewired to prevent problem tripping once you understand the method of the circuit wiring as described in the links below.
  • Wiring a GFCI to Protect Other Outlets
    GFCI outlets may be wired so they only provide protection for one outlet or several outlets.
  • Wiring the LINE and LOAD Side of the GFCI
    The correct wiring adjustments may be made once the LINE or power source has been identified then the proper LINE and LOAD wiring configurations mat be made.

IMPORTANT
When rewiring any ground fault protected devices it is important to maintain GFCI protection at the required locations.

More about Wiring Methods for GFCI Outlet Receptacles

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The features and benefits of GFCI outlets and receptacles will give you a clear understanding of the importance why these safety devices are required by code to help protect you and your family against accidental electrical shock hazards.
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This list of articles will help you learn about the features and benefits provided by GFI and GFCI Receptacles and how they are wired.

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