Troubleshoot a Tripping GFCI Ground Fault Circuit Interrupter

Why do GFCI Ground Fault Circuit Interrupter Trip? Nuisance trips of GFCIs can make you tempted to remove the GFCI but they serve an important safety purpose and once you understand how they work, it is easy to get to the root cause of the problem.

GFCI outlets and GFCI breakers both trip with the difference in current between the L1 black wire and the Neutral white wire is greater than 5mA. Note that this doesn't necessarily mean that the black wire is leaking current. In this video's example, we show how continuity between the neutral and ground wire can cause enough voltage imbalance to have a current that is greater than 5mA.

This is extremely important on boats, marinas, and other wet locations where leakage current has been common in the past. Even on a boat or equipment with inverters, leakage current is not that trips a GFCI is not normal or acceptable.

Also, outside of the United States, a GFCI Ground Fault Circuit Interrupter is called an RCD Residual Current Device.

Get the full details of this lesson at https://controls.tw/yt-courses

Items used in this video:
GFCI Outlet https://amzn.to/2Zo2QHt

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