Questions tagged [circuit-breaker]
For questions generally relating to safety devices used to automatically stop the flow of electric current in the event of a fault condition. Use this tag for questions about fuses, too.
178 questions with no upvoted or accepted answers
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Tankless 240V water heater in detached garage tripping AFCI/GFCI breakers in house
We have two separate buildings, a house and a garage/workshop, about 20 feet apart, sharing the same electrical service. On the service entrance, there's a Siemens whole-house surge protector. The ...
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How do I troubleshoot a newly installed non-working outlet?
I recently spent several frustrating hours trying to figure out why an outlet on a new branch circuit would not power a load even though there was proper polarity at the outlet, my non-contact voltage ...
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Why do I measure 120 Volts at the breaker when it���s turned off?
A friend's house had outlets go out in the garage and in one of the bathrooms and rooms. I went into the attic and checked for junction boxes. All the cables are direct to the circuit panel with no ...
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Lights on One Circuit Breaker Dim and Go Out. Host of Other Issues as Well
Summary (TL;DR)
Several lightbulbs in my home supplied by one circuit breaker dim over time and go out in about a year. Right now, the ceiling light in my living room won't turn on at all. It will ...
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Circuit Breakers Tripping When Power Restored After Outage
We just finished construction of a new home in Washington State. We've had several minor power outages in the couple of months that we've lived here - a few seconds to 10 or 20 minutes. After a few ...
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Need advise about fixing/replacing shed fuse box
I have an old house with a detached shed and a damaged fuse box I'm planning on replacing. There are 3 wires going to the shed and a metal water line between the shed. I'm planning on replacing the ...
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No power to entire circuit after adding a single receptacle
I was just adding a receptacle to one of my electric circuits. Once completed, I turned the circuit breaker “on”. No power on any of the receptacles and lights on that circuit. I checked every ...
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Wall A/C unit runs partially after turning off and eventually trips breaker. Is it a stuck relay?
I have an in-wall A/C unit that has been getting a workout in this 90 degree weather. It's a Kenmore Model No. 580.74124400. 115v 11.5A on a 15A dedicated circuit. I've now had two instances of the ...
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Why does my breaker trip when turning on lights on another circuit?
I'm trying to diagnose an issue that has cropped up in the last few days regarding a nuisance tripping breaker.
For background, I've lived in this apartment for 6 months now, with no notable changes ...
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Weird Electrical Issue In Garage
Hi I have a question and I was hoping to get some insite. First I am getting a certified electrician to come check it out on Thursday but figured let me do my homework.
So I noticed the other day my ...
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Purpose of adjust out screw on circuit breaker cover
What is the purpose of adjust out screw on circuit breaker cover. The reason opening was showing is I haven’t put blank back in place.There is one at top and bottom in center of cover.
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"Open Neutral" only when load applied- my tester is confusing me
I have a 20amp circuit with a 20amp GFI and 4 more 15amp outlets after it. With nothing plugged in, they all indicate (on my 3-light tester) they are wired correctly. As soon as 1 thing is plugged ...
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Breaker trips after electrical work, should I fit a bigger breaker?
I took out 2 walls in my kitchen. Deleted 2 3way switches. Created a junction box in my crawl space. Flipped the power and everything worked. A few hours later I turned my garage light on and it ...
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Why do I have a 3 wire/double pole breaker for kitchen receptacle?
I am switching my kitchen receptacle to a GFI; it has 3 wires. I'm pretty sure I have to break the bar between the two hot screws, thus making the top and bottom on a separate circuit. What is the ...
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Why am I unable to reset my residual circuit breaker?
Location is India. Here is the problem that I am trying to diagnose.
What happened: One of the sockets did not have a ground connected. Called the electrician and he connects the floating GND/Earthing ...
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