Questions tagged [electrical]

Distribution and use of electricity throughout the home. Electrical standards vary greatly worldwide, so you need to provide your location in your question or profile to 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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24 views

Recess lighting not working properly [closed]

I have 3 lights on a circuit and when I turn them off one light stays on but very dim, when I loosened that bulb the other bulb goes on
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2 answers
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Upgrading a subpanel

I am upgrading a sub-panel from 60A to 90A. The original feeders were #8, which I will replace with #4 copper. Can I leave the #8 neutral and ground that bond the main and sub-panel in place, or ...
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5 votes
2 answers
468 views

What do E and COM mean in a blower motor wiring diagram?

I'm a bit confused with the wiring diagram of this blower motor. Is the COM the neutral wire or the hot wire? And then would the E be neutral if the COM was the hot wire? Or is it the ground? I ...
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1 answer
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Interesting electrical ceiling box with downward pass through bolts

I'm trying to mount a heavy ceiling fan but ran into a unique ceiling box I've never seen before. Two bolts come down from the metal horizontal piece and pass through the plastic box. This was the ...
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1 answer
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NEMA 10-30 Ground & Neutral Bonded

Remodeling a 1970’s era condo. The current dryer receptacle has a NEMA 10-30R on a 30 amp breaker. While we are going to be using gas instead of a 240v dryer, I decided to pull the plate and make sure ...
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2 answers
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Why are there 3 cables going into 2 switch electrical box

Three main cables going into this 2 switch junction box. Going to move the switches up 6” and don’t understand why there are 3 main cables going to this box. There is an outlet below and to the left ...
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Is plugging a leading-edge dimmable lamp into a trailing-edge dimmer plug safe?

Rationale for what I'm trying to do: I'm trying to update my house to use "smart" lighting and one device I want to update is a smart lamp in this style but with replaceable bulbs. If I ...
3 votes
2 answers
121 views

Proper way to repair a broken hot leg of a 3-wire subpanel run

My new house was built in 1980 (Virginia), and it has a detached garage. I went to install a 30A double pole breaker to power a 240V mini split, when I noticed the panel only had one powered 120V bus, ...
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2 votes
1 answer
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How to determine if an electrical box is code-compliant/listed for non-permanent installation?

I'd like to build a cord with a an 14-30P plug on one end and a 14-30R receptacle on the other end. I'll be using 8/4 SOOW cord. Since there are no 14-30R receptacles designed to attach to the end of ...
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Help wiring 2 Lutron Caseta dimmer switches

I'm attempting to wire 2 Lutron Casseta switches: Lutron Caseta Switch: Box: 4 wires feed into the box: Top two wires, one has three wires (black, white, ground) one has four wires (black, white, ...
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13 votes
1 answer
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Where can I get a cover for a main supply?

My house (I live in the UK) failed an electrical safety inspection because of a missing main supply cover. I have tried using google to find one to buy but can't find anything at all. Does anyone ...
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2 votes
3 answers
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How to safely secure AC adapter wire to a skirting and a door frame?

I purchased an adapter for my doorbell and need to secure it to skirting and a door frame before it is fed through the door frame to the doorbell outside. I thought it would make sense to use a ...
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2 answers
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Treadmill causes loud buzz from computer speakers [closed]

A treadmill is plugged into an outlet. A power strip is plugged into another outlet on the same circuit. A USB-powered speaker and computer are both plugged into this power strip. When the treadmill ...
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1 vote
1 answer
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Secure conduit within walls and through lower stud

I have an exterior wall opened up on my house and was thinking about installing a conduit to allow myself some flexibility in the future. Possibly: ethernet for security camera simple run for 120v ...
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1 answer
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How can I shorten the cable on an outlet bar?

I have several long outlet bars I'd like to install under a cabinet. I'm not interested in hard-wiring them, so I will plug them into some existing outlets. The problem is that I only need about 2 ...
3 votes
2 answers
462 views

Klein RT210 GFCI tester not triggering AFCI breaker

My question is should a GGCI tester work on AFCI breaker? Background: I have a KLEIN RT210 tester with an Eaton AFCI breaker and when test a plug the lights tell me that it is wired correctly, however,...
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1 answer
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How Can I Install 3 Way Smart Switches That Require Neutral

I'm trying to replace 2 sets of three way switches with smart switches. One end of each set requires neutral, and unfortunately there doesn't seem to be a straight forward way to accomplish that with ...
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1 vote
1 answer
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Need help with wiring up a switch

I have a single gang box with 3 pieces of romex in it one is a homerun"hot", the other is a switch leg, and the last one is for the receptacles in the room how do i hook it all up to a ...
0 votes
1 answer
70 views

How to propely wire from 320A meter/2x 200A disconnects 200 ft to panels at house?

I had posted on here before about my situation where i had already installed a single run of 3"conduit with a run of 500/500/350 in it but was having an issue with how to solit the service. Since ...
14 votes
3 answers
2k views

Does it cause problems to overtighten connections on receptacles/switches?

One of the things that's always been drilled into me is "loose wires cause fires," and that's something I always remain conscious of when changing out devices. But is there such a thing as &...
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3 answers
112 views

Single pole or double pole circuit breaker for 240V 30A dryer?

Home Depot's 30A circuit breakers are available in double pole or single pole embodiments. A new electrical line is to be installed for a 240V 30A dryer: it will require a 30A 240V rated circuit ...
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2 answers
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What size/color wire nut?

I am replacing a 220v 40a hot tub circuit with a 120v 15a hot tub. 8ga is wired to the box. Im replacing the breaker with a 20a GFI 120v and caping the unused line. Question is it within code to ...
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1 answer
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Grounding with portable using interlock [closed]

Was a similar question; but they were not using a interlock. I have a DuroStar dual fuel DS 10000eh that is hooked up to my main breaker using a 50 amp plug and using an interlock set up. My panel ...
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1 vote
0 answers
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Connect ceiling fan romex to switch controlled outlet or directly to switch?

I’m installing a ceiling fan in the living room. I want to control the ceiling fan light and fan on separate switches—the ceiling fan is capable. However, the wiring in the switch box made me pause. ...
0 votes
2 answers
91 views

Disposal must be plugged into above counter outlet to be used

My daughter just moved into a small apartment. The tiny kitchen requires you to plug in the disposal to a GFCI outlet that is on the wall above the stove in order to run it. There is no on/off switch. ...
0 votes
1 answer
88 views

Well pump reads 125v on each terminal but wont come on

When we bought the house the pump was wired directly to the breaker on a 240v circuit. I went to add an outlet and a sprinkler controller between the two. The picture shows the old vs new set up. The ...
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8 votes
1 answer
1k views

One circuit in house losing voltage

One circuit in our house is behaving very strangely, and isolating the issue has proven difficult. It's a house built in the late 60s and the electrician who wired this did add what I think is quite ...
0 votes
3 answers
130 views

Remote indicator for light switch left on?

Short version: Could I hook up a remote indicator light that is lit when a simple on/off light switch is in the on position? Long version: I've got an exterior motion light on a switch which is ...
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0 votes
2 answers
122 views

Replace 2 home stoves with 1 commercial [closed]

We have 2 household ranges sidebyside on 2 50amp breakers. We want to replace both stoves with 1 60in commercial stove with burners/griddle and 2 ovens below. Without doing to much rewiring..is this ...
0 votes
3 answers
56 views

Can the Lutron Accessory Switch be used alone

I purchased the Lutron dimmer & accessory switch combo. I want to use the accessory switch alone for a light. Is that possible? Or does it need to connect to the dimmer?
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60 views

Why does my hall light flicker when i turn my bedroom fan off?

We have a brand new house. We have found so many things we've had to fix already ugh! But, right outside our bedroom is the hallway with an LED light. When it is off and we turn the switch off in our ...
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1 vote
1 answer
117 views

Is this a GFCI tester on breaker panel? What does it do?

I noticed that there is a GFCI tester on the breaker panel. But I'm not sure what it was for. The directory just says "Ground Fault". so I interact with it a little. I pressed the test ...
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Shower Burnt out when not in use

My Daughter has having a shower in her bathroom, at the opposite end of the house to ours. Our en-suite shower started making a dreadful banging noise and then water came out of the spray. It then ...
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0 votes
2 answers
68 views

UGF Wire in Conduit

The previous homeowner of a property I recently bought ran 8ga UGF 4 wire to an outbuilding. The wire comes up 4' out of the ground to daylight and into a junction box on the side of the building. I ...
0 votes
0 answers
39 views

I want to upgrade my power in y mobile home

I have a mobile home wich is 583 sq ft I want to upgrade the power service for the meter I install already 100amps breaker after the meter I go to run #2 aluminum wire from there to the electrical box ...
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0 votes
0 answers
31 views

Controlling multiple lights (stairs and basement) with motion-detector

As you can see in this photo, I have an unlit stairway down to my basement. At the bottom of the stairs to the right is a door to my basement-level garage. We use these stairs frequently. I want them ...
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0 answers
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Homeowner excluded from doing electrical work inside service panel?

My local municipality has informed me that while I can do some permitted electrical work myself (outlets and wiring), I am prohibited from doing any work inside of service panel (installing a breaker),...
1 vote
1 answer
35 views

R and W shorted on electric furnace

I have a heat only electric furnace. Bypassing the thermostat, the R and W terminals on the control board are Always connected. The thermostat is good but something is causing the control board to ...
0 votes
2 answers
75 views

What size subpanel for an office / shed

I have an office / shed that I just built in my backyard. I just finished running wire out to the shed and I'm trying to figure out what size subpanel. I'll need. My plan is to have 3 lights (1 ...
0 votes
3 answers
81 views

Siemens GFCI+ARC combo keeps tripping

It was being temperamental, working for periods, and then tripping for periods. So I replaced it with another Siemens combo breaker, but it still trips. If I replace it with a non GFCI breaker it ...
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0 votes
1 answer
124 views

Does anyone know what the black cables that are taped together, and how do I get this grounded?

I went to replace a light in my hallway and there is no ground wire. There’s a red wire connected to the black wires from the light and a white wire. I noticed a bunch of black wires taped with ...
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1 vote
2 answers
80 views

How Many Circuits Should I Add Upstairs? [closed]

I bought a single-family dwelling in the USA last year with this scenario on the 2nd floor: Circuit #1 - 15 Amp Bathroom lights Living area (395 sq ft) lights & 7 duplex receptacles. Attic lights ...
1 vote
2 answers
88 views

Can electrical conduit indoors on surface of finished wall penetrate ceiling without special portal?

I'm running some THHN wires from surface-mounted receptacles in a finished kitchen up the surface of the wall and into the attic. Surface run is wiremold 700 raceway, conduit in attic is flex. I've ...
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0 votes
3 answers
119 views

When 2 Jointed White Neutral Wires are separated, one becomes Hot?

Electrical Socket in Ceiling Issue I wanted to replace a ceiling light in the foyer after 7 years. The ceiling light electrical socket has 3 wires. Two Black wires joined together (capped & not ...
0 votes
1 answer
82 views

How should I reconnect my ceiling fan to this three-way circuit?

I am replacing a kitchen ceiling light/fan in a house I just recently purchased. It has two separate cables coming into it. Each contains a red, black, white, and ground wire. The box is controlled by ...
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0 votes
2 answers
129 views

Can I put more than one single-zone ductless mini split on a single branch circuit?

I’m planning to replace my old central forced air HVAC with mini split systems, but for a number of reasons, it will be more than a single multi-zone compressor. In that regard, am I required to have ...
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0 votes
0 answers
102 views

Lampholder with Socket but no Ground Wire

I was replacing a ceiling lamp holder with chain with a new unit that has a socket however the metal electrical box has 2 wires (black and white) but no ground wire. I replaced it and it is working ...
3 votes
2 answers
845 views

Lake Irrigation System 220v & 110v needed at end of long run

I bought an older home with an existing lake-feed 2-zone irrigation system. The system uses manual valves near the 220v 1.5 hp pump, no zone controller. I want to replace the manual valves with ...
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1 vote
0 answers
35 views

Connecting flush mount split service panels

I have split service (I think) - 2 panels with separate 200A switches. The panels are flush mount. I want to install a Sense monitor which requires linking between these two. What's the best way to ...
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6 votes
1 answer
215 views

Is This Receptacle Up To Code?

I recently added this receptacle to my bathroom because I am putting a vanity here that has a built-in power bar and previously the only receptacle in the bathroom was the GFCI outlet at the top of ...

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