Questions tagged [wiring]

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

407 questions with no upvoted or accepted answers
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How would I ground an internal ethernet surge protector?

I have a Cat-6 cable running to an external PoE security camera that I'd like to have surge protected, but I'm unsure how to ground the protector. It has a prong coming off that I assume is the ground ...
4
votes
2answers
188 views

Why does my light box have 2 cables for this one switch?

Took down a ceiling fixture and discovered what looks like a possible switch loop, except I don’t understand how the connection gets completed with the current set up. Basically, 2 lines coming into ...
4
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4answers
831 views

What is the proper way to convert a pair of three-way (SPDT) switches into a single two-way (SPST) switch?

I'm in the process of replacing some of the light switches in my house with smart switches, Wemo Light Switches in this case. I've had no problem with the replacement of my One-way switches (SPST I ...
3
votes
1answer
270 views

Sub panel and ground rod installation: “high differential potential between the ground locations”

We have a dock (fixed-pier) that is about 40 feet from the house, and +100 feet from the main panel. 4-wire (2 hots, 1 grounded neutral, and 1 ground) run to a large junction box at the start of the ...
3
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3answers
2k views

How to replace a light fixture that has a 3-way light switch

Box] I have a light fixture above a stairwell. There are two live switches that control it, one at the bottom of the stairs, one at the top. The wiring is relatively new about 25 years old (all copper,...
3
votes
3answers
1k views

What's the “correct” way to install LED drivers for accent lighting?

I want to install LED strip lighting behind crown molding in my office. In my particular install, I'm using 3 strips of SMD 5050 RGBW LEDs, which draw about 72 W per strip. From what I can gather, ...
3
votes
1answer
240 views

How should my third-generation Nest thermostat be connected?

I have an old Honeywell Q674 thermostat with mercury in the house we just moved into. I'm attempting to upgrade to the nest 3rd generation thermostat, however the wiring labels are VERY different. ...
3
votes
1answer
237 views

Install recessed lights and chandelier with 3-way switches

I am remodeling my entry way and dining room to give a more open feel. Existing: 15 Amp breaker 12-2 Feed directly from the box two gang box outside of the kitchen 1 standard switch and 1 three ...
3
votes
1answer
292 views

How do I install a SensaSwitch on a 3-way circuit?

I recently purchased a SensaSwitch, Manual-ON / Timed-OFF (PDF of instructions) and I cannot install it in such a way that it performs as I desire. I have a switch at the top of my basement stairs and ...
3
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1answer
1k views

How can I wire a bathroom light switch which has an outlet, exhaust fan, and vanity light all from same junction box?

Trying to wire the bathroom light switch, but vanity light will not come back on. There are two wires, black and red, plus a ground wire that wasn't hooked to anything originally just touching the ...
3
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2answers
3k views

How to connect a 3 wire cable to a 2 wire outlet?

I have recently had a conservatory built and want to wire an internal light fixture that has a live and neutral and Earth terminals. I have removed my old security light and I am left with a cable ...
3
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4answers
1k views

GFCI Problem with Three-Way Switch WAS Two Switches Neutrals Only, Switched Hots Not Used

I replaced an old two-prong receptable with a three-prong GFCI (no ground) yesterday. It won't reset. I found out that "downstream" there is a light on the next level down that is controlled by two ...
2
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1answer
68 views

Electrical problem in the breaker box

The black wire is connected to the neutral bar and the white wire is connected to the breaker. Should it be this way for any reason
2
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1answer
62 views

light turns on when window ac unit is on

Why does the light in the same room as my window air conditioner unit dim ON when the air conditioner unit is on? this happens when the light switch is on the OFF position and only happens on one ...
2
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0answers
90 views

When running crawl space conduit, must the conduit be run through the joist via drilled holes, or can they be attached underneath?

I'm wiring my home for 110V and cat6e(48-0V). There is currently no wiring, just an air tight shell with interior studs exposed. There is a crawl space where I would like to run all of the conduit ...
2
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0answers
50 views

Why do I measure 12VAC on old thermostat wires?

I'm installing a nest thermostat in my house - it's the UK version with a heatlink. I have successfully wired the heat link into my combi-boiler, disconnecting two existing wires in the process. I ...
2
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1answer
93 views

Black paste inside wire nuts?

I have read that older houses may have aluminum wiring, and to splice copper to it there is a less than desirable method of purple wire nuts using corrosion inhibitor paste. My house was built in ...
2
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0answers
74 views

Junction Box Blank Cover in HVAC Duct

I am starting a bathroom remodel second story that requires a length of NM wire to be lengthened by a few feet. I realize I can't do this hidden in a wall or floor and need this done in accessible ...
2
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0answers
52 views

Can I split a large amp 240 circuit into two lower amp 240 circuits?

I just bought a house. It has a double oven unit installed on a 50 amp 240V circuit. I need to replace this unit with two separate units, one 30 amp, 240V and the other 20 amp, 240V. Can I split ...
2
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0answers
59 views

Wiring light switches in two rooms help

I am changing some wiring in two rooms of my house. Room 1 had two switches that controlled an outlet. We have since taken one of those switches and installed a ceiling light. The other switch ...
2
votes
0answers
91 views

How can I provide up to 70V AC power to a sliding glass door panel?

I'm renovating a master bath and the entire wall between the bath and the master is completely removed. The view and light that this provides is very nice so I'm considering putting in glass instead ...
2
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2answers
75 views

What type cable and size should I use for my shop?

My existing overhead wire is triplex 1/0, 2 insulated and one bare. The power company is out of the picture because they do not provide service to a customer supplied pole. My existing wire is at ...
2
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0answers
55 views

Replacing a motherboard on a Carrier 8000VS Furnace

Hi guys, I am trying to finalize the wiring of my new carrier motherboard. I have about four more wires to connect and the new motherboard is slightly different than the old one. The pictures I’ve ...
2
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0answers
42 views

Connecting network gear directly to electrical line

I’m installing multiple PoE networking switches on a pier, but I’m not sure the best route for plugging them in. There are only a few existing plugs on the dock but they aren’t located near where ...
2
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0answers
83 views

Wanting to make existing 2-wire 220V outlet a 4-wire one

(Located in the USA) I've inherited a 220V (or 240V?) circuit which is just capped off inside a junction box. It's hooked up to a 30A breaker, and seems fine, except that it's only a 3-wire run--no ...
2
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0answers
102 views

Indicator light flickering on combination switch/outlet

I've looked at 3 furnaces plugged into combination switch/outlets that have indicator lights, but no GFCI switches. On just one switch, the indicator light is flickering unevenly. Is it trying to tell ...
2
votes
4answers
250 views

Is voltage on the ground conductor a sign of short circuit?

When we touch the ground wire(!) on some of our power outlets, the tester lights up. Not as bright as when touching the live wire and the circuit breaker doesn't tip, but there is definitely "...
2
votes
2answers
173 views

Checking ground current

Background: I had a contractor finishing my basement, and part of that was installing underfloor heating using several heating mats in parallel. It worked initially but soon after it just started ...
2
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0answers
349 views

Smoke Detector wiring - impacted by 2 breakers?

dig if you will the picture of one of my smoke detectors and the curious (for me) wiring. Actually, I've taken many pictures, but each is just a mess and I think will make it harder. We have ~7 ...
2
votes
1answer
2k views

Use 6-30 plug on 14-50 outlet

I am planning to install a NEMA 14-50 outlet in my garage on a 40A breaker (Romex 8/3 cable from breaker to outlet) for use with an electric car charger. The charger will charge my wife's car in the ...
2
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0answers
617 views

convert three way circuit to two single pole circuits

I have two three way switches within arms reach of each other for the overhead lamp in a small hallway. I want to take them out and replace them with single poles the second to operate under cabinet ...
2
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1answer
1k views

Wiring a ceiling fan with light to a box which has 3 cables running into it(white, black, red, and bare)

i am replacing a light fixture with a fan. I already installed the fan rated box but the box has 3 sets of wires coming in. 2 of the sets have a red wire and all three have a black, white, and copper ...
2
votes
1answer
756 views

Want to add a WIFI thermostat, but no 'C' wire… only 2 wires to each thermo

i have a 5 zone radiant floor, oil fired heating system. Each thermostat only has 2 wires running to it. i have a TACO SR506 switching relay that receives the wires from each thermostat and controls ...
2
votes
2answers
4k views

Wiring a fan/light/Bluetooth fixture

I am wiring a fan with a white/black/green wires. The cable going to the switch box to fan has an extra red wire that was twisted with the black. I capped the red and connected the matched colors to ...
2
votes
1answer
512 views

New Thermostat installed but compressor comes on immediately

I have a new Insteon Thermostat that I'm using to replace my prior Honeywell t-stat. This is installed to a relatively new HVAC system (both AC and Heat) that DOES have a "c" wire. I've attached the ...
2
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0answers
2k views

My appliances are shocking me…but only me

The metal parts of the fridge, stove, and sink are shocking me. However, when my husband touches them, he gets nothing. I've also found that the metal gates and latches leading to the pastures are ...
2
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0answers
64 views

Replaced a Heat/Light/Vent with a vent only. There does not seem to be a hot wire:

The three gang box previously had a HLV combined switch plus a switch that operated a separate light. Stupidly, I removed and discarded the switches and units (light and HLV) without studying the ...
2
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0answers
1k views

Why does my new lamp hum while turned off?

I just changed the ceiling lamp I had in my kitchen, from an ancient one (probably more than 20+ years old) to new and beautiful hanging one. I also switched from the old incandescent bulb to a CFL. ...
2
votes
1answer
109 views

New thermostat: How to wire it?

My old air conditioner thermostat broke down, so I bought a new one. But when it arrived, I was horrified to discover that the terminal of the wires were not named the same. Both thermostats have ...
1
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0answers
42 views

Replacing a cable in an electrical panel: Need hints and names

Previous owner left a chunk of 3 line triplex(2 insulated + ground) 4 ga aluminum into the main panel, hooked it up to a 50A breaker, and left the other end floating free in the rafter space of our ...
1
vote
0answers
43 views

3 cables into a 2 switch box

My breaker keeps tripping because of this wiring and/or faulty switches and now with a new switch, my ceiling fan won’t turn but the light still works and it still trips. I’m trying to figure out how ...
1
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0answers
51 views

Running electrical on outside of house

I need to convert an outlet to 230V 15A for a window AC. Unfortunately the outlet is on the second floor, outside wall of a solid brick house. I’m considering punching a hole through the back of the ...
1
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0answers
33 views

Splicing or Extending 2.5mm2 Twin & Earth (UK)

I am trying to install a WiFi connected smart switch to control a ceiling light. The wall box is too shallow to accommodate this, so I need to install it inline. To do this, I need to move the circuit ...
1
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0answers
25 views

Separate Thermostats for Heating and A/C

I recently purchased a vacation home that has two thermostats for a forced hot air gas furnace and a separate A/C unit that shares ductwork. The A/C also cools better when both the A/C and furnace fan ...
1
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0answers
24 views

Wiring 2 gang light switches

I have a two gang box with a dimmer switch to recessed lights AND a remote switch to operate a fan/light. There are 3 romex bundles leading into the box, however, only one of the black wires is HOT, ...
1
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2answers
61 views

Where Should the Sub Panel Go? What Size Wire?

Been lurking for awhile getting ready to install a 60 amp sub-panel for my back yard. I have everything I need figured out except for three important items as I get conflicting stories depending on ...
1
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1answer
46 views

Simple light switch wiring isn’t working

I have power coming into box from black and white wires. When wiring black to light switch and white to white leading to fixture, the breaker goes every time. When wiring the two whites together ...
1
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0answers
50 views

Can armored cable cross over a drain pipe?

My electrical system uses the armored cable sheathing as a ground path. I was placing some lines of AC in my walls, and I uncovered a drain pipe in the way. At first, I covered the AC with ...
1
vote
0answers
37 views

How to wire an entire room / kitchen with LED light strips?

As the question suggests, I'm looking into adding LED light strips throughout the kitchen (over cabinet, under cabinet, and kick -- I think under the countertop would be neat, but harder to hide). ...
1
vote
1answer
103 views

How should I connect a ceiling fan with four 12/2 cables coming in?

I had a detached garage built. The guy who ran the electrical is not available and I am having some trouble with how he ran the wiring for two ceiling fans in the loft area. There is one switch (...