Questions tagged [electrical]

Distribution and use of electricity throughout the home. Electrical standards vary greatly worldwide, so providing your location in your question or your profile helps ensure you get answers that are relevant to you. Posting photographs of wiring junctions or drawing a wiring diagram and posting it is also highly recommended.

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White residue on flow heater pipe

My flow heater (Vaillant VED E 18/7) stopped working when I switched a breaker off. Upon opening the casing, I found out two things: 1: The water intake pipe has a small white discoloration and seems ...
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1answer
32 views

Is soldering copper to aluminum wire allowed under NEC?

Another question made me curious, does the NEC allow copper wire to be joined to aluminum wire by soldering?
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45 views

Strange voltages from wires behind outlet, and smell from behind outlet

For the last month or so I've been getting a strange smell in my house that we bought 6 months ago. The smell is not obvious, but smells a little burnt to me, but my wife thinks it smells like a stink ...
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27 views

Changing My Light Switch Need Help With Wiring

I have two light switches in my bedroom wall. One controls my fan and one controls my fan light. I have read that it is not safe to install a dimmer for a fan but they are separate switches. Before I ...
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1answer
36 views

Grounding rod required, detached garage?

I have a separate garage, 50' from house. It will have no 220vac, all 120 vac in garage for outlets and lights. Will run 6awg from 100 amp subpanel in basement of house to 60 amp panel in garage. ...
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2answers
87 views

Are my circuits properly grounded?

I have a Cutler Hammer CH30e panel. On the right side on the panel there is a neutral buss with the a #6 cu ground and a 1/0 Al THW neutral. The buss is also connected to the panel What I find very ...
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1answer
50 views

Recycle E12 sockets from a string of outdoor patio lights for Christmas decorations

I am wondering if it's possible to recycle a string of patio lights that have E12 sockets with new wiring for a Christmas project. As it stands now the string of lights has a socket about every eight ...
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45 views

size sub panel needed for mini house

I have 400 amp service in a 3800 square-foot home. I ran 100 amp to a garage. I want to build a mini-home that will require approximately 130amps in appliances, etc. What size sub-panel do I need? ...
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Is this outlet wired to a switch correctly?

I have been upgrading to grounded outlets in my 1950s house and I just want to make sure that this particular outlet was wired appropriately by the previous homeowner. This outlet is controlled by a ...
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1answer
33 views

when I turn off the breaker, light goes out but I still see some voltage with my voltage checker

there are two switches in the box. One goes to an inside light the other goes to an outside light. i turn off the breaker and both lights go out. when I check with my voltage checker, I don't see ...
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34 views

Old cable: type of isolation and size of ground

one of the cables going to our electrical panel uses silver color insulation ("silver cable" in picture below). I can identify all cables types on our panel except this one. When were these cables ...
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2answers
117 views

Are AC-DC 5V power supply modules legal in USA if mounted inside an outlet box?

I'm wall mounting a tablet and need to supply 5V. I've seen posts on how this can be achieved but my question is specifically about these types of power supply modules: https://www.ebay.com/sch/i....
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3answers
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Main panel mounted directly to cinderblock wall

My main electrical panel is mounted directly to my basement wall, and I noticed last night while I had it open that it is starting to show signs of rust/oxidation around the mounting screws. What is ...
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How do electric hot water heaters explode and what can be done to prevent that from happening?

My neighbor and good friend is a union steamfitter, and general handyman. He had to replace his electric hot water heater last year and he did it himself. My wife and I have to replace ours now, and ...
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2answers
59 views

Ring Doorbell - upgrade chime and transformer?

My SO purchased a Ring Video Doorbell Pro for our home recently. I began researching, and it states that the ring requires a power source that supplies a minimum of 16 volts AC at ~20 volt-amps when ...
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1answer
76 views

Is this safe extractor fan wires exposed bathroom

We have had an extractor fan put in our bathroom by our landlord, but there are exposed wires behind the fan, which is directly next to the shower. It's connected to the light switch with no isolation ...
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697 views

Shared ground on bathroom light, fan, heater combo

I plan on replacing the exhaust fan in my bathroom and want to replace it with a light/heater/fan combo. In doing so, I want to be able to power both the vanity light and the fan light with a single ...
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1answer
29 views

Can I use a nest thermostat for two heating sources (Furnace and electric floor heating)

Current situation: My home is currently heated with central air. Not my first choice, but that's what I have. I have brand new 98% efficient modulating furnace controlled by a Nest thermostat(no AC)...
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How to compute breaker size for electric Stove + Oven?

I currently have electric appliance, and I want to replace them with newer units. These are the ratings of newer units I am considering: Induction Stove VICU53616BST - Maximum Amp Usage 240V - 48....
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Are soldered electrical connections code-compliant?

I was changing a switch in my house when I found a number of connections in the electrical box that were soldered rather than secured with a wire nut. The solder joints look very well done, the ...
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102 views

Options for Running High End Computer on Old Circuit

I'm preparing to build the computer of my dreams. Unfortunately, it's going to top out at 1350 Watts when running at peak performance. I live in an 80 year old bungalow and the power situation is less ...
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1answer
23 views

Electric water heater thermostat keeps tripping and needing reset

I have a 40-gal A.O. Smith Promax electric water heater (see pics below). It was a few years old when we bought the house, and we've been living here about 10 years. So I realize the heater may be ...
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2answers
106 views

How can I mitigate humming from a streetside electrical transformer?

I have humming coming in and I think it is from the green box on ground, electrical transformer, in the front yard. It also has a hum. I have reported to electric company, but I don't think they will ...
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4answers
116 views

Lamp base out of wood, containing wires. Is there a safe way?

I want to build a lamp socket base out of wood. In general I'd have a total of three lamps sockets hanging from it, which I'd feed through drill holes and would wire together in a hollowed out part of ...
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1answer
79 views

Weird humming noise at home

So there's a weird humming noise in my apartment that pops out for a few hours a day and would keep me awake. I was hoping you guys might have heard of it and can tell me what the hell is causing this....
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68 views

Adding a C Wire for my new thermostat

I just bought a thermostat that needs a c wire. I ran a 18/5 wire, but where do I connect the c wire to? Here is a picture of the back of the board.
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507 views

Identify voltage by looking into gang box

I was replacing few of my old manual thermostats with smart thermostats. While installing the new ones, I noticed that some of the gang boxes have 4 wires (2 black, 2 red). Some of them have 6 wires (...
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1answer
61 views

Ceiling box has 2 black wires and 1 white wire

I just moved into a newly built condo, and there wasn't a light fixture installed before. This is what it looks like right now: There are two wires, black and white, marette'd(?) together, and there ...
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4answers
86 views

Possible to have wire mesh fencing plus a couple live wires for wild animals?

We bought a small former horse farm a few years a ago. We reinforced the old horse pasture with wire mesh fencing to keep our dogs in. Now we want to fence in a wooded part of our property for the ...
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3answers
261 views

Is there anything to be concerned with this picture?

I just got a W/D combo unit that only needs a 120V outlet and my laundry room only has a 240V outlet. Rather than converting the 240V to a 120V, I want to be able to have both 120V and 220V outlets ...
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58 views

New light bulbs light up even when switched off

Edit: I have confirmed that my main question is answered in another post. But there are still things that bother me. Why is there a buzzing sound when the bulbs work? The new bulbs do not light up ...
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1answer
16 views

Furnace shutoff switch outlet only hot when furnace is running

I have an old Aprilaire 700 powered by the 110v outlet on the side of my furnace. I recently replaced the old humidistat with a newer Aprilaire 60 Digital. This humidistat comes with the blower ...
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2answers
661 views

Handybox Extension

Can you stack a handybox with an extension outside of the drywall? This puts the total box size at just shy for 4". I know handyboxes can be used with conduit, but can they be double-stacked in a ...
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1answer
18 views

How to connect two track lights

I would like to connect two tracks (Example H-Track). Only the first track has access to a power source (Connector used). I know that there are adapters that which would connect two tracks directly to ...
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2answers
61 views

Breaker tripping wires disconnected

I ran a new supply line to my pool pump from a 20 amp breaker with 12 ga. UF-B romex out of my attic, down 14 ft. of 1/2 inch conduit on the side of my house then 2 ft below grade, another 40 foot not ...
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32 views

Trouble with LED dimmable bulbs in fan

I recently purchased LED candelabras to replace my incandescent bulbs in my fan. When I installed just one bulb everything worked perfect (fully dimmable/full power). I didn't like the color ...
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25 views

Nest thermostat wiring problems

Removing my old Honeywell thermostat to replace with the nest. I live in Florida and my ac unit is 10 years old. I’m not sure if I have conventional heat or a pump. I took a picture of the old one but ...
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23 views

How to wire a ceiling fan to one switch with 2 cables

If I have 2 cables, both with hot, neutral, and ground running from one box and a ceiling fan and light that will be on separate switches in one wall box, do I hook up blue to black, black to black, ...
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633 views

Are “terminal block” style junction boxes allowed in the US?

In the UK it seems pretty common to see junction boxes with built-in screw terminals that are used only for splicing wires from 2 or more cables together. Typical example: (source) Sample wiring ...
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1answer
34 views

3-Toggle to 2-Toggle

I’d like to replace the three toggle switch with a two toggle switch. The leftmost switch (as shown in the below photo) does not control anything in my bathroom. I’d like to replace this leftmost ...
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46 views

400 amp electrical service

I need to make a service for a duplex that I use to feed my 400amp service. What gauge wire do you recommend for either aluminum and copper? Also, do you recommend one or the other?
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1answer
30 views

1-1/4" thru I joist above bearing point

I'd like to run a lot of circuits along one exterior wall thru 11-7/8" tall I joists. The manufacturers basically say 2" holes need to be 1' away from a bearing point yet their plugs may land directly ...
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1answer
33 views

Gfi outlet trying to install light switch and light

While trying to install light switch and light from an existing gfi outlet the circuit faults whenever switch is turned on also the light comes on in the off position 12 gauge 3 wire coming to ...
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2answers
86 views

Why three wires?

I have a carport light that takes two switches to operate. An inside switch essentially sends power to an outside switch. In other words, when the inside switch is in the "on" position, the outside ...
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1answer
35 views

Ceiling fixture

Bathroom fixture help Attempting to install a new bathroom fixture and have run into some trouble. I have two wall switches that control three lights. One switch turns on/off two vanity lights and ...
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3answers
110 views

Why do I read 120v between the hots and neutral in a 240v circuit?

I installed a 240v outlet for a new GE stove with its own 50 amp breaker. I ran a 50' section of 6/3 cable, 18' of it from breaker box to a vent in the foundation then I stapled the remaining to floor ...
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3answers
53 views

Broken LED remote

My 44 button LED light strip remote is snapped in half and will not work obviously. Is there any way I can replace the remote by just ordering a new one or will i have to manually repair it. If so, ...
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2answers
63 views

Do future electrical works invalidate a satisfactory EICR?

I recently got a domestic EICR done for rental purposes. Certificate shows Satisfactory Result. I am about to commission the fitting of a new light which will require wiring into the fuse board. ...
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35 views

How to fix an exposed wire on my headphones [closed]

I'm not the savviest when it comes to electrical problems so I apologize if there's an easy fix that I have not thought of! One side of my headphones has completely broken off, leaving behind exposed ...
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4answers
3k views

Are these pigtails inside the panel and outside a junction box allowed?

I am concerned about a newer electrical panel's installation, where one of the older load wires, at the main electrical panel, appear to be shorter in length, appear not reaching the desired circuit ...