The installation of wire and/or electrical devices, to allow the transmission of electricity from one point to another.

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Which wire should be capped when replacing an old 4 wire smoke alarm with a 3 wire alarm

We have to replace an old 4 wire smoke alarm, wire colours are: white, black, orange, brown, in our condo with a 3 wire smoke/co2 alarm. My question is which wire from the old system should be capped ...
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1answer
23 views

How do I replace a 3-way switch on 2-wire cable with a programmable timer switch?

I'm using the same Honeywell Programmable Timer from my last question, but under different conditions. In particular, I'm replacing a 3-way switch on 2-wire cable. Here is a schematic showing the ...
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1answer
36 views

Can I change a switch within a circuit from powering multiple lights to a single light?

I have a family room ceiling fan connected to a single pole light switch. However, that switch also controls a bathroom light, staircase light and a bedroom receptacle. There is only 1 cable coming ...
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1answer
27 views

Adding work shop to garage

I am planning on building a wood workshop attached to my garage. I have a 220 line already on the outside wall of my garage with two 20 amp breakers. Can I install a 60amp sub box in place of the ...
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2answers
37 views

How do I wire this switch/outlet combo?

This 5 minute task has kept me busy for an hour. Old switch/outlet combo melted. Replacing with gfci combo. Red/White pair is the line. Orange/White pair is the load to the light. Strangely, ...
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43 views

Specialty stove wire and box fill

This armored wire shows 2 sets of wire crimped and a ground. For box fill would this be considered 3 or 5? Does this increase amprage and voltage allowances? Is there any other circumstances a ...
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1answer
55 views

How do I replace a single pole light switch with a programmable timer switch?

We have a light switch box containing three single pole switches (no ground terminal) in the foyer near the front door. I would like to replace the light switch controlling the porch lights with the ...
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1answer
64 views

How do I rewire this ceiling fan?

Hi someone was cleaning the dust off a ceiling fan in my house today and the screw broke off from the ceiling so we had to take it apart to fix it. Now we are trying to figure out the wiring the ...
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2answers
73 views

How do I rewire this box?

In an '80s Canadian house I took out a wall switch and now I can't figure out how to rewire it. The box has three cables coming into it. They all come off the same panel breaker. Two of the cables ...
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2answers
27 views

Replace one of the 3way switch to sensor switch in the hallway

I have TWO 3-way switch in my hallway for light fixtures and I tried to replace one of the them to be a motion sensor switch. Both are working before the replacement, I can turn on and off with both ...
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4answers
235 views

How should I run power wiring and Cat-5 to the perimeter of my huge yard?

I have a house that sits on about 4 acres of land. There is a very large front yard and an even bigger one in the back. I want to get both power and Ethernet (for security cameras) located at various ...
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1answer
29 views

i may have crossed some blackwires on a switch

I am replacing switch in the basement and switch has 3 black wires. That switch is now turning the kitchen light on. What happened. I believe I know what I did but not sure which way to put the wires ...
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3answers
82 views

How to handle ground and neutral in multi gang box containing both branch and traveler further down on same branch?

I have a 15 amp branch circuit where the first box from the breaker contains a switch for a ceiling light at the door leading to the garage. This box supplies the rest of the branch. On the same ...
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1answer
350 views

Where do I connect the C wire in my furnace?

I am upgrading my thermostat to a Nest, and would like to add a common wire. My current furnace controller doesn't have a C terminal, but the current thermostat wire has 2 unused wires (black and ...
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2answers
107 views

Acceptable “3-way” switch wiring solution?

I would like to use a raspberry PI to turn lights on remotely from a raspberry PI. In this diagram, I am proposing 2 paths for completing the AC circuit and therefore turning the lights on: 1) the ...
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1answer
31 views

my furnace fan stays on even when at temperature

I recently installed a 2nd generation NEST thermostat. I'm not home very often, but I was paying particularly close attention to the furnace after installing this thermostat and I noticed that the ...
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12answers
31k views

When wiring outlets should I use pigtails or both sets of outlet screws?

I'm replacing the outlets in our house and pulled out one that had two black and two white cables. My first thought was that it was two circuits, one of them being switched, but then realized the tab ...
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1answer
224 views

How do I wire a pull cord ceiling switch?

I'm replacing the bathroom extractor fan switch with a new one (the pull cord no longer works) The new switch only has place for 4 wires - Neutral and Live (Supply and Feed) and the earth. I have 7 ...
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2answers
32 views

Change GFCI outlet/switch with regular switch

I have 2 switches in my bathroom: a fan (power comes into the fan and it's just a simple black/white to the switch) and a switch/outlet GFCI combo where the switch powers the lights but the outlet ...
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2answers
225 views

Bathroom fan/light switch with outlet

I have a switch in my bathroom that controls both the fan and the light, and also has an outlet. Can I get anything that has two switches (one for the light and fan) and also not lose the outlet ...
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1answer
19 views

How to convert L609 4wire to L6 3wire

My electrical feed to location is L6 3wire (grnd+X+Y). My cabinet is L609 4wire (grnd+neut+X+Y). The cabinet feeds 4 blocks of 110V. Should the grnd+neutr be plugged into the grnd on the L6? or do I ...
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0answers
23 views

Freezing drain problem

I have a drain that has a catch basin that runs across the span of my driveway right in front of garage door. There is a slope so water can run down all the time. Problem is ice forms in the winter ...
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1answer
495 views

How can I add a C-wire to a Venstar T5800 thermostat?

I am trying to replace my existing thermostat. My old thermostat has: Rh, W (coming from the heating unit). Rc, Y, G (coming from the AC unit). On the Venstar T5800, I can map as follows: Rh+Rc ...
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2answers
58 views

Can stranded wire be used for pigtails in a junction box?

I replaced a fixture today that had a piece of 12Ga stranded (probably THHN) wire used as a pigtail. The building has some wiring in conduit (other wires in this box were solid), so I'm guessing ...
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2answers
3k views

3 wire service to panel… neutral and ground wires on the same bar?

I'm getting two conflicting reports and was wondering if anyone can help me. I was told that on the distribution panel, grounded conductors (neutral) and ground wires need to be separated in the ...
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1answer
878 views

why does my heat pump wiring diagram show 7 wires going to the thermostat but the thermostat only says it needs 5?

Here is a link to the wiring diagram for my heat pump. The thermostat that I am planning on buying has the following terminals C, G, Y, O/B, RC, R, Aux, E, and L. The instructions say to jump the RC ...
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1answer
69 views

Install Honeywell RPLS740B with three-way switches (disable three-way?)

I would like to add a Honeywell RPLS740B to a circuit with two three-way switches to control four outside lights. I realize the RPLS740B is not compatible with a three-way circuit, but my question is ...
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1answer
137 views

How can I install Z-Wave switches in these different situations?

I am trying to install z-wave lighting switches into my apartment. What I have discovered is that every light switch in my apartment that I have taken apart (4) is wired differently. The switches I am ...
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6answers
15k views

Is there an NEC-compliant method of repairing minor damage to electrical wire insulation without a junction box?

While trying to pry loose a stubborn cable staple that fastens a 14-gauge electrical cable to a stud, I accidentally tore a very small hole through both the outer jacket and the insulation around the ...
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1answer
299 views

Can I wiring LED light fixtures in parallel?

I have 4 120 v 20 watt LEDs. I want to put them over my desk. They are the Lusa Lighting Model #33000 (If you want to see the PDF). They come with plugs so you can plug them in separately. I want 1 ...
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2answers
33 views

Is there a 3-way occupancy switch with one sensor being external?

I have two lamps wired to a 3-way regular switch: one in a hallway and another one on the staircase following it. I would like to change the regular switch with motion detection occupancy one, but ...
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945 views

What do I do with the neutral and ground when wiring a transfer switch?

I know there are a lot of questions about wiring a generator to a home electrical panel, but I can't find the answer to the questions that I have. I would like to wire a generator that has the ...
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1answer
28 views

Is my breaker box aluminum compatible?

I have been advise to convert old aluminum branch wiring with AlumiConn connectors and maybe also in the breaker box, unless the circuit breaker is AL & CO compatible. How do I determine this? Can ...
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2answers
36 views

Ceiling fan with remote wiring issues

I have a Hunter ceiling fan and LED light kit that comes with the fan, I purchased the display model so I don't have any wiring diagrams. The fan has ground (green), white, black and black with a ...
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3answers
207 views

Can I use metal masonry device (switch) boxes in a stud wall?

I am installing new wiring and need to place 5 lighting switches in one location (yes, I understand the problems/issues of confusion, etc.). These will all be 3-way switches, non-dimmable. I plan on ...
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3answers
41 views

Using half of a 240v dual-phase circuit as a 120v single-phase circuit (US)

Usually when I see a 240v device, it is wired to its own double-pole circuit breaker, with each pole connected to a different 120v phase (to provide 240v total). If there is a 120v device in the same ...
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2answers
48 views

Can multiple 2-way occupancy motion sensor switches be used together?

Can multiple 2-way occupancy (AKA motion) sensor switches be used together? For the top and bottom of a staircase, I want the lights to be on if either switch senses motion and the lights stay on ...
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1answer
57 views

Can 12/2/2 cable be used with two circuits on the same leg with the neutrals tied together?

I'm rewiring an old house. It has a mix of knob and tube and romex wire. I'm planning to remove all the knob and tube. In the basement I found 12-4 Romex (Black, Red, White, White W/Red Stripe and ...
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2answers
60 views

Where can I find information on slow blow breakers?

In a previous question, the comments mentioned slow blow circuit breakers. I have done a web search and went to Square-D's website(the maker of my current breakers) and came up empty. There is a lot ...
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1answer
70 views

Is it possible to add a “C” wire to my electric heater?

I bought a Wifi Thermostat but my old thermostat did not have a Common Wire. I can't use any of the swapping the G for the C solutions because I have an electric heater. I was told by Honeywell that I ...
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2answers
6k views

How can I replace multiple 3 way switches with motion sensors?

My tenants never turn the lights off in the stairwells of my 3 family house, so I'd like to replace all of the light switches with motion sensors. Here is a crude diagram of how this is set up now. ...
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2answers
156 views

Why would an old fridge trip a circuit breaker?

I recently got an old fridge from a friend for use as a fermentation fridge for my homebrewed beer. The reason they were getting rid of it was because it was working fine, however it wouldn't cool ...
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1answer
213 views

How can I replace an old dial thermostat on an oil furnace with Hydrostat 3250 Plus?

I recently bought a home with an oil fired Biasi furnace that has a Hydrostat 3250-Plus attached. It uses an old analog round dial thermostat, and I'd like to replace it with a new digital (wifi) ...
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1answer
48 views

Three hot wires,1 neutral on a switch

I am trying to replace an outlet, but am having trouble figuring out how to wire it properly. The top receptacle on the outlet is supposed to be connected to a switch. When the switch is turned on the ...
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1answer
37 views

How can I install ceiling mounted recessed occupancy sensors?

I am looking to replace my current lighting circuit with a motion detector and wondering what is the best way to do this? I currently have 6 spot lights, controlled by 2 switches on either side of ...
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1answer
81 views

What could cause lights to come on full strength then dim?

I just finished setting this up: There are actually 4 lights chained together at the end rather than just one. Once I finished I turned the circuit back on and tried out the switches. All of them ...
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5answers
7k views

Is “don't mix data and power cables” and “don't loop power cables” still valid nowadays?

There are two sayings I keep hearing when talking about wiring e.g. home cinema or computer hardware; Don't wrap data/network cables and power cables up in the same loop because the power cables ...
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2answers
51 views

Ceiling lights running dim

I have a persistent problem with the upstairs ceiling lights in my house where they often run dim for a while and then return to full brightness a few seconds later (at most 1 minute). Sometimes ...
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1answer
61 views

How can I convert 4 ft fluorescent tube fixture to be used as a plug in fixtures?

So I purchased four overhead 4 foot fluorescent tube fixtures and my plan is to re-wire so that I can plug them into a wall. Would it make sense to run them in (Series)? (I believe that is the ...
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1answer
78 views

How would I go about adding more receptacles to a garage?

Looking for help in trying to get more electrical outlets installed in my woefully under-receptacled garage. I have one GFCI 20A outlet at the door going into the garage, one single ceiling outlet for ...