Linked Questions

6
votes
2answers
2k views

How is it possible to get an electric shock even with mains power off?

I was changing a socket outlet yesterday. I switched off the mains power at the consumer unit (the big red switch) so thought all was safe. I disconnected the old socket, but when I went to fit the ...
3
votes
2answers
5k views

Stud sensor finds current on large wall area

The detached garage for my home was built by the previous owner in 2000, the garage interior is naked particle board directly on wood studs, and the insulation has paper backing (not foil). When ...
0
votes
2answers
2k views

Electricity tripping off after installing Nest [closed]

I just replaced my old thermostat and timer for a Google Nest, but every time I turn the electricy back on, it goes off shortly after. I have an oil boiler for heating. Before I call an electrician, ...
0
votes
2answers
221 views

How to test an electrical switch to ensure the power is off

I used a voltmeter to test for power on my electrical switch and I was surprised by a blast of electricity. You can see the damage in the picture. Why did I get a reaction? Did I test it ...
5
votes
1answer
1k views

Replaced Blower Motor, but A/C won't stay on unless power button is held down

My HVAC has an electric furnace blower motor for both heating and cooling. I called a repair guy out who explained that the capacitor was good, I just needed a new motor because it had gone out. I ...
1
vote
1answer
704 views

Voltage tester detecting voltage in non-hot wires when the light switch is off [duplicate]

I just switched the wiring of a single-pole light switch from back wiring to side wiring and noticed that my voltage tester (non-contact pen-style one, Klein Tools NCVT-3) detects voltage in both the ...
1
vote
1answer
812 views

Why do my new basement lights trip the breaker?

I am upgrading my basement and the builder initially put the family room and two lights in the basement all on one circuit. During the remodel I tried adding two more lights to that same run and it ...
1
vote
1answer
801 views

Wiring a light fixture

I am replacing a light fixture in my bathroom with a LED fixture. My house is from the late 20s so there are some quirks. In this case I have 3 sets of wires into the box. There are 6 other lights, ...
1
vote
1answer
5k views

Proper way to test AC voltage for dishwasher hookup

I am trying to connect my new dishwasher to the electrical cable coming up into my kitchen from down in the basement. This (white) cable actually houses 3 smaller wires inside of it: A white wire (...
0
votes
1answer
1k views

Fried dimmer turns lights on/off but new dimmer won't

I had two black wires, one red wire and two white wires coming from the ceiling (I suspect there used to be a fan with a light). In the switch box, there was a black and a white wire (with a green ...
0
votes
1answer
3k views

How to wire LED light to old wiring layout

Bought a new LED strip light to replace an old fluorescent light. After removing the old light I'm left with 3 grey cables coming from the ceiling.There are 3 copper ground wires are all sleeved into ...
0
votes
1answer
74 views

No power to room

Left heater plugged in drying floor all night. Woke up to no power in room and no breaker kicked. Can't figure out what happened. Checked plug in and shows hot and ground reversed but don't no how. ...
0
votes
1answer
196 views

3 Way Switch Spark

I am trying to figure out why a spark was created when I was testing the voltage across a three way switch I have. So to make a long story short, I was trying to move some switches because I didn't ...
0
votes
1answer
2k views

How to work out which wire goes where when replacing light fixture

There are 2 neutral wires and 3 black ones and a ground. The ceiling light is on and hard wired in and I can't turn it off. The adjacent bedrooms are without power. I know I scrambled the wires so ...
0
votes
1answer
2k views

Old house--no neutral wire for Nest Protect?

I'm not particularly electrically inclined, but am giving a go to setting up a wired Nest Protect where an old smoke detector was installed. The device says to connect its white wire to the white (or ...

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