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2answers
105 views

Can having a bad grounding situation destroy a circuit breaker?

We moved into a home, built a while ago. there are wires hanging and covered in black tape on a chimney. I bought 2 sconces and put them in place. i did not hook up the ground wire on one of them, ...
2
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1answer
339 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 ...
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1answer
83 views

What size breaker and wire do I need to feed a panel for a tankless water heater?

I purchased a electric tankless water heater and I would like to know the following? The unit requires 3 separate 40 amp breakers, one for each line. I have 200 amp service. The subpanel will be ...
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0answers
205 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 ...
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0answers
55 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 ...
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0answers
72 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 ...
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0answers
479 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 ...
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0answers
43 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 ...
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0answers
51 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 ...
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0answers
181 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 ...
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0answers
119 views

What could be causing our air conditioner circuit breaker to keep tripping?

Our air conditioner circuit breaker marked "AC", is tripping frequently after the AC unit works for a while. Sometimes as long as an hour or more and, sometimes as short as few minutes. We were told ...
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0answers
77 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 ...