For questions generally relating to safety devices used to automatically stop the flow of electric current in the event of a fault condition.

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2
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1answer
596 views

Why does half the house go out when a single breaker trips?

The breaker box at my brother's house is well marked and balanced except when a breaker is tripped half the house goes out. I'm currently living on the third floor of his house. When I turned on a ...
2
votes
1answer
74 views

Device keeps tripping AFCI device

I have a BedJet device that I run at night that keeps tripping the ARC-fault breaker in my bedroom after about 30 minutes of running nearly 70% of time (other times it works just fine). I have tried ...
2
votes
1answer
242 views

New install: What's causing a tripping arc fault breaker?

We remodeled our home and had all new electrical put it in to plan. For rough-in, the electrician put in regular breakers instead of arc fault breakers. Arc fault breakers are required by code now ...
2
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2answers
282 views

Why does a GFCI breaker trip when another breaker is accessed?

I just bought a new house, and on the first day there realized a breaker was tripping. It is one of only two GFCI breakers in the box. It's 20 amp with a bedroom/bathroom on it. I tested every outlet ...
2
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2answers
2k views

Use of combination CAFCI and GFCI breakers instead of recepticles

I am about to begin a project that will include one or two new circuit for outdoor lights and receptacles attached to the main building. I will probably installing a new home run line from the panel ...
2
votes
5answers
2k views

Low voltage fuse blowing in furnace

I have an outside A/C compressor and indoor furnace fan combo in the attic. The unit was off and the 3 amp fuse was blown. I replaced the fuse and used the thermostat to turn the fan on followed by ...
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3answers
94 views

Circuit Breaker change

I am changing a Federal Pacific Electric Co. Circuit Breaker double 40amps but I can't find one. Can I use a double 50? It's for a wall oven?
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3answers
22k views

What did I do wrong??! Wiring error is tripping circuit breaker

Here's the scoop: There are 3 switches in my hallway. One switch on side A and two switches on side B. Side A switch controls same light as one switch on Side B. I replaced the switch on Side A ...
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2answers
314 views

Breaker lets more Amps then its max

The last few day's I had the main breaker triped a few times, I checked the amps with a multimeter and when the central air conditioner turns on it draws 150! amps for 1 second and then goes down to ...
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2answers
269 views

Identify type of circuit breaker

My house came with a main panel that supports this type of circuit breaker. However, I am unable to find that type at the store and the breaker doesn't say what type it is. I thought it might be ...
1
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2answers
9k views

How do i know if my service panel will accommodate a 240v circuit breaker

We are looking to install a hot tub and trying to find out if our service panel will accommodate a 240v circuit breaker. This is what our panel says but I do not know what all of this means: ...
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1answer
822 views

Is it safe to pull a continuous 18 amps from a 15 amp outlet?

I have a heater that draws a continuous 18 amps and has a 20 amp plug. I created an extension cord to plug into the wall, however on one end it's a 20 amp receptacle - heater plugged into extension ...
1
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1answer
95 views

Powerboard overload switch melted

We came home last night to find one of our powerboards (outlet strips) had melted/caught fire. Pretty scary! Now I'm not 100% sure on what happened but I believe that there was an oil column ...
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3answers
2k views

Oven suddenly tripping circuit breaker…bad oven or bad breaker?

We have a double Thermador oven in our house. We've owned the house for around two years, and the oven has worked fine up until the last few weeks. Now, using either of the ovens trips the circuit ...
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5answers
10k views

What would cause an AFCI breaker to trip under no load?

I have an AFCI Breaker that trips with 0 load - nothing plugged in, no lights on. To test that power is getting to the room, I turn on the overhead CFL lights (very light load) and flip the breaker. ...
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5answers
63k views

How many lights can be on one breaker?

How many lights can be run from one breaker I would like to add two two tube fluorescent lights to a string of lights I have already.
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2answers
448 views

Power Strip/Extension Cord on TV stand

I have a question. I have a TV stand with a capacity of 80 lb., and on it a TV that weighs ~50lb. On the wall directly behind my TV, I have two electrical outlets. On the floor, I have a surge ...
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2answers
88 views

Why does my greatroom have a GFI breaker on the circuit?

We moved into a condo in 2012 and have had issues on one of the circuits. The circuit serves the outlets in our great room and sun room. Initially, we would trip the breaker when using the vacuum ...
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2answers
110 views

Light sconces tripping circuit breaker

I recently installed two sconces in our kitchen to replace some old halogen lights with LED bulbs. The boxes had three (?!) White wires twisted together, two black wires twisted, and one red. I ...
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3answers
11k views

Why does my power keep going out to most of my house?

My power frequently goes out, mostly at night or early morning. Sometimes it goes off multiple times in a row, sometimes just once. Most of the time, I can get it to come right back on by flipping the ...
1
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1answer
60 views

Identify fuse that is off/bad but not tripped

I have a set of outlets and an overhead light in the garage that are not powered. I believe I know the fuse they are under via simple labels and from some process of elimination. The fuse is not ...
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3answers
1k views

2 15 amp breakers to 1 30 amp

I have a wired garage that has 3 wire 10 gauge going in to it. In the panel this wire is hooked up to 2 individual 15 amp breakers. I want to know if i can put in a 30 amp breaker in that spot. The ...
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1answer
1k views

How do I replace a GFCI breaker with a normal breaker?

I have a breaker on my panel that has 2 white wires and one black and a test button. I am changing to a breaker that has no white wires going to it just the black. Do I put both white wires to the bar ...
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2answers
2k views

How can I remove a stuck circuit breaker from the panel?

I went to replace my circuit breaker for my dryer because the dryer kept shutting off. I started checking around and discovered when you jiggle the breaker a little the dryer light flicker. I ...
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2answers
8k views

Wiring diagram to split one circuit for ceiling lights in multiple rooms?

I would like to replace some Knob & Tube wiring in my attic. Currently, the ceiling lights in most of our rooms are all on a single circuit and are branched using many knob & tube soldered ...
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1answer
219 views

Is it safe to replace a GFCI breaker with an arc fault breaker?

We recently had our electrical panel replaced/upgraded and I noticed that our GFCI breaker was replaced with an Arc Fault breaker. Is that safe? Are GFCI breakers obsolete now?
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3answers
3k views

Why does this switch throw the breaker when turned on?

I volunteered to help a friend with an electrical problem she was having - two of the receptacles in her bedroom did not work. All the receptacles that I looked at had two black wires and two white ...
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2answers
174 views

What type of damage can power surges do?

I've lived in this apartment for a couple of years and electricity have always been bad (a demand in power from a device systematically causes others to fade off). I know that a power surge can cause ...
1
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1answer
50 views

HVAC tripping breaker - things to check before replacing?

HVAC system (we're in Houston, it's still hot here) stopped working Tuesday. A/C guy came out, determined it was tripping breaker. Would trip immediately after resetting, but after a couple of ...
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1answer
75 views

Remove power spike when restoring power

I've been experiencing interesting problem recently. When the power goes down, there is roughly 50:50 chance that a circuitbreaker for my plugs trips after the power comes back on. Flipping it back ...
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2answers
692 views

Low voltage under load from main line

I have two main hot lines coming into my circuit breaker. One has a steady voltage of ~124 load or no load. The other has some mysterious problem. Sometimes it works fine delivering proper voltage ...
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1answer
185 views

Can you wire a 30A 2P standard circuit breaker “downstream” from a 60A GFCI 2p circuit breaker?

Will this still provide GFCI protection? Is this against code? Does this represent a hazard? I have a subpanel with a 60A GFCI circuit breaker, that I want to use that to feed to 2 30a 240v ...
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1answer
407 views

Can I install tandem breakers in this panel, and would one 20 ampere circuit be enough for a garage?

I'm a home owner searching for information before hiring an electrician to come and do work on my home. What I want: Have a separate breaker\s to service a single car garage. 3 receptacles each ...
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2answers
85 views

Using a 100A main breaker in a 200A panel

So I purchased a 200A Siemens panel to replace the old 100A sub panel in my house. The main panel is in the garage and is also 200A Siemens and has a branch circuit to the house of 100A. I bought a ...
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1answer
26 views

While replacing a GFCI I find it has 2 circuits running into it. New GFCI trips

House sale, inspector pointed out the GFCI at the front of my garage was failing his tester. Trip light was always on but it still fed power. Skip to the end if this is too wordy, but I wanted to ...
1
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1answer
59 views

How can I replace an I-T-E panelboard? [closed]

I have an old 225 Amp 30 space commercial flush mount sub-panel in my home with bolt on breakers that has worked for years. Now, there's 120v on one bus and 0 volts on the other bus. When I remove ...
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3answers
84 views

Apartment Circuit breaker flips randomly

I'm not sure how to diagnose or fix this issue. I have seen it happen when nothing is on, when a few things are on, and when the heater is on. It does not appear to matter what the electrical ...
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2answers
166 views

How Do I Connect 00 AWG Wire to a 100A breaker?

I'm hooking a 100A service panel to my meter pan. There is the 100A disconnect panel on the right side that feeds the little house, I'm installing another panel on the left side to service my barn, an ...
1
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1answer
77 views

What areas of a home are required to be AFCI protected?

I've got a Crouse Hinds panel with the majority of the breakers being of the ridiculous side connecting type. The panel and breakers are old and beginning to arc due to the lose connection. I've found ...
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1answer
65 views

Circuit Breaker installation

Why is it so difficult to put a circuit breaker in? I push the plastic part in but the steel contact does not go in. I broke a single 20 amp...any tricks?
1
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1answer
228 views

How can I replace circuit breakers with GFCI breakers when it is a multiwire branch circuit?

We have 2 carriage lights on our patio and 3 flood lights on our eves. The carriage lights are controlled by two 3-way switches and the yard lights are controlled by another set of two 3-way light ...
1
vote
1answer
944 views

GFCI Breaker - not tripped = outlets work, turn light switch on breaker trips, lights work but outlets do not

I had a kitchen remodel that went a bit bad with a contractor and his minions. The house was build in 1934 so has a two wire system with a 100A panel. As we remodel we are replacing 2 wire system ...
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2answers
626 views

Breaker box one 120 slot left but need one for a second 220 or 240 breaker.

My breaker box has only one breaker slot left for a 120 v breaker. I want to ad a 2nd 220 or 240 breaker to a new outlet to plug a heater into for my basement workshop. Is there any way I can do this ...
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2answers
606 views

Why use AFCI receptacles rather than AFCI breakers?

Is there any reason to use an AFCI receptacle rather than replacing the breaker with an AFCI type? It seems that providing protection on the whole circuit makes much more sense than to just one ...
1
vote
1answer
8k views

Can you put a small breaker panel after a 30 amp breaker from main panel in the house?

Looking to run lights in my garage. If I put a 30 amp breaker in my main panel on a 10 wire to a small breaker panel in my garage, can I put 2-4 15 amp breakers out there for the lights? Likewise, ...
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2answers
4k views

Why is my fuse board buzzing when I'm using the shower?

I have used an electric shower for years no problems, but all of a sudden my fuse board started buzzing when I use the shower. I replaced the shower with the same size unit and it still makes a ...
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1answer
49 views

Noisy breaker, whats the reason

One breaker started making a noise every time after i put it on, sometimes its immediately after switching it to on and sometimes it starts after a few seconds, and after a while the noise gets lower ...
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1answer
54 views

Computer makes USB unplugged noise when I run the microwave/heater

Not sure if this is the correct place to ask, but my computer, heater, and microwave are all on the same socket. I have had times when if I run the microwave, the fuse blows. But just curious, if I ...
1
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1answer
281 views

Thermal protection switch replacement in recessed incandescent can lights

I find very little discussion of this issue on the net. My son has a Nutone Scovil 60 watt max incandescent recessed can light, damp location rated, in a shower with a high ceiling. Its thermal ...
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1answer
480 views

Circuit breakers off, but meter still running

I purchased a house a few weeks ago and got the power connected about a week ago. The house has been empty and I leave all the circuit breakers off. The Meter is digital but the display doesn't seem ...