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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4
votes
4answers
461 views

Different circuit breakers keep tripping, some not re-setting

Background: South Carolina house built in 2009, assume all electrical systems, main panel and circuit breakers new at that time. I moved into the house in May having transferred from the UK. I brought ...
3
votes
1answer
59 views

After a minute running, dryer trips main breaker outside the house, but no internal breakers

I recently solved (sort of?) an issue regarding my washer & dryer not getting power. I consider that issue solved, but now I have a new one, possibly what caused the problem before. Now that I ...
3
votes
1answer
295 views

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 ...
2
votes
1answer
84 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 ...
1
vote
1answer
90 views

Circuit breaker panel voltage drops when a load is added

I have a 240 volt 225 amp sub-panel. Both lines attached to the bus bar have 120v. When I turn on any breaker connected to one of the bus bars, the voltage drops to 80-108v. If I remove the load and ...
1
vote
1answer
47 views

Buzzing sound relates to domestic fuse problem, or bigger issue?

I noticed the light in the fridge was flickering, same with the coffee machine LEDs etc on the same plug circuit. Fortunately, I noticed that in the garage...this house built about 18 yrs ago; this ...
1
vote
1answer
71 views

circuit breaker trips

I have a breaker that keeps tripping even when no load is on it. I have already replaced the breaker with new, replaced a ground fault outlet and a dimmer switch ( all on circuit), and same thing ...
0
votes
1answer
15 views

My light switch trips the breaker when its placed into the box

I have a box that contains 3 light switches. I replaced the old switches with new ones simply for cosmetic reasons. The old panel worked perfectly fine. When I install the new switches everything ...
0
votes
1answer
43 views

Replacing a Challenger breaker with an after-market breaker

I have a Challenger panel board and one of my breakers is no good. When I went to buy a new one they don't carry them anymore. They said they only carry the after-market ones. So I got that one, but ...
0
votes
1answer
52 views

light switch trips breakers at random, but never itself

I recently installed a monorail lighting kit in my home office; I wanted another spot-light which meant I need to swap out the included transformer to something that would allow more than 100 watts. ...
0
votes
1answer
69 views

Dead circuits with breakers across from each other

I have 4 dead circuits which were intermittent off/on at first- now dead. The 20 amp dual tandem breakers are across from each other in the breaker box. The breakers/circuits above and below the ...
0
votes
1answer
334 views

Whirlpool washing machine won't start, need help replacing fuse

My Whirlpool washing machine died today. The control panel lights are unresponsive, so it looks like there's a problem with its electricals. The socket works, and the troubleshooting manual mentions ...
1
vote
0answers
29 views

Ceiling light wire/hook up

Hello I hooked up a new ceiling light, There are 3 different color wires. Red,Black,and white, 2 of each color wire. I wired each color wire to there self and then wired the light wires (copper color) ...
1
vote
0answers
53 views

Tankless water heater - Electric issue

I have a AuqaPower Tankless water heater I installed myself 2 years ago. I used the old wire from old (tank) water heater and I ran a new wire for the 2nd place. It has worked great for 2 years and ...
1
vote
0answers
72 views

How do I add a bell transformer to THIS consumer unit

I'm trying to add in a bell transformer to my existing Hager consumer unit. It's from about 1995. I live in England. The first image below shows the front cover, with five spare ways and their ...
1
vote
0answers
327 views

30amp power cord to 20amp breaker?

I am converting a cargo trailer into a camping trailer, including wiring it to have power from and RV hookup. The most common RV hookup is a 30amp. Since i don't really need the 30amp power, my plan ...
1
vote
0answers
91 views

How to know that new appliance won't trip the circuit?

I'm buying new appliances and want to make sure I won't trip the circuit. MW/convection is 950 W, 1750 W and 900W for three different functions. There is 20 Amp circuit for that. the new stove ...
1
vote
0answers
799 views

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 ...
0
votes
0answers
7 views

tandem 20 amp breaker keeps tripping

one of the tandem 20 amp breakers for bedroom/bath (6 duplex receptacles, 240 watt bathroom light with 60 watt bulb/bath exhaust fan) keeps tripping. i've replaced the breaker several times. the only ...
0
votes
0answers
29 views

How can turning on or off a circuit beaker affect a ground on a different circuit?

I am addressing electrical issues in my parents house and came across this situation..Circuit breaker "A" controls the downstairs bedroom outlets. Circuit breaker "B" controls the upstairs bedroom ...
0
votes
0answers
26 views

Reading voltage on neutral line

Ok, here goes, I'll try to be coherent: Residential house wiring. This is my girlfriends rental property and both her brother and father have done some electrical work on the house (so I have the ...
0
votes
0answers
24 views

A/C board is bad…is this from previous poor repair?

Back in May our A/C and heat would not kick on. Tech came out and replaced the A/C fuse box and everything was fine. Last week the coils froze up (has never happened before) and tech said the board ...
0
votes
0answers
16 views

Where can i find a replacement for an out of date main circuit breaker

The main circuit breaker in my parents house blew and needs to be replaced. Our electrician is having trouble finding a replacement as the model is no longer carried in the regular stores. Here is a ...
0
votes
0answers
26 views

Random Outages on only 5 of my breakers. Open/ Bad Neutral?

Every morning when dawn comes around (5:30 - 6:30 am) the power on 5 breakers in my house seem to kick on and off with power. The breakers are my water heater (electrical/ no gas), my a/c, my kitchen ...
0
votes
0answers
12 views

Eubanks 9 SEER air conditioning max circuit breaker size

Can a 50 amp breaker be used with a Eubanks 9 SEER air conditioning unit. We cannot read the plaque information. I bought the property and that is what is currently installed. It's an older unit ...
0
votes
0answers
150 views

how to wire a 220v 110v transformer at the circuit breaker

does some have a diagram that shows how to wire a 220->110v transformer at the main circuit breaker.. i have a wire ready with 220 and a another ready to receive 110v .. the 220v ready wire has has ...
0
votes
0answers
93 views

I am having problems with my circuit breakers. can you help?

When I shut one breaker off all the power shuts off to 5 other breakers. What could that be?
0
votes
0answers
78 views

wiring my mobile home breaker panel

Someone had broke in and stole my 200 amp breaker panel by cutting the wires how do i know what the wires go to after entering the ceiling also there is no writing on these wires to tell me what gauge ...
0
votes
0answers
69 views

Breaker for compressor tripping when a/c reaching stage 2

My breaker for the compressor is tripping when my a/c is switching to stage2 in very hot weather. Is there anyone who can give me the steps to troubleshoot this issue?
0
votes
0answers
58 views

Can I install a 150A breaker if the the outdoor MCCB is 100 A?

I have a villa, which is 375m2. On the boundary wall of the villa I have a molded case circuit breaker (MCCB) rated for 100A. I need to install a main distribution panel (MDP) inside the villa. The ...
0
votes
0answers
78 views

No power to lights or receptacles yet meter shows 120 volts at breaker - 2 separate wires

Outlets and lights are not working from 2 separate wires coming out of my breaker box. Both main wires coming into the box show 120 volts each and the 15 amp breakers read 120 volts where the wires ...
0
votes
0answers
71 views

Single pole circuit breaker won't close unless double pole above it is closed

I was trying to find out where a trip was in my house and turned off a double-pole breaker then a single-pole breaker. Went in reverse order to turn single-pole back on and it would trip back open ...
0
votes
0answers
366 views

Why is my bathroom vent fan tripping the GFCI when being shut off?

I have a GFCI tripping when a vent fan is being shut off. I saw in KeithS's answer to a similar question that the blades rotating after shut off causes an imbalance, tripping the GFCI. In my case the ...
0
votes
0answers
121 views

Terrarium electric board

[hope this isn't off topic for this board] I'm doing a DIY electric board for my terrarium: in case something goes wrong at least the whole electric circuit won't switch off. My current setup is a ...