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Why does one outlet trip the breaker, but not others?

Home Improvement Asked on June 17, 2021

In my spare bedroom, there are four electrical outlets. If I use a vacuum cleaner in one of those outlets, the breaker trips. However, if I use any of the other outlets, it works fine. Is the outlet itself bad, or is there some other kind of wiring problem?
This breaker only powers the four outlets, a ceiling fan and light. I had the light (7W LED) on, and everything else off or unplugged.
All outlets show 120V Hot-Neutral, and 0 V Neutral-Ground.
The breaker is a 15A Combination Type AFCI Type BRAF.

2 Answers

On the contrary, that outlet is probably the one that has the most direct connection to the breaker. The additional wire between that outlet and the others is what reduces the current that the vacuum cleaner draws just enough to keep the breaker from tripping.

Answered by Dave Tweed on June 17, 2021

You sound you live in a house with an illegal safety code. One sure way to find out if the house wiring is breaking the safety electrical code, test every AC receptacles with a $1 AC pen tester. if both a Neutral (White) or the Live (Black) wires lights the pen, then you need to call a "certified electrician" to pinpoint which non polarize receptacle is causing the problem which won't take 30 minutes to find and fix.

Answered by Josef Kurr on June 17, 2021

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