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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3answers
45 views

Portable AC trips circuit breaker

The portable ac in one room trips the 15 amp circuit breaker after about 45 minutes, can the breaker safely be changed to a 20 amp breaker?
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1answer
60 views

feeding both sides of load center from 120vac backup source

In a situation of temporary backup power (short-term grid outages), is it ok to feed both "sides" of a standard split-phase main load center from a single 120vac backup source (e.g. an inverter driven ...
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3answers
66 views

How is the service drop or service lateral of a residential electric service protected from overcurrent?

In typical North American residences, a pole transformer supplies two leg 120 V electrical service to a home. My service is rated at 200 A. If I were to draw excess current from the triplex service ...
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3answers
43 views

Height Adjustable Kitchen Island on Casters

I am planning to build a kitchen island with two features Height adjustable Movable using casters The reason for #1 is it can be used as dining table during parties The reason for #2 is that can be ...
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2answers
73 views

Replace 240 receptacle with one or two 120

I found some similar questions but given possibly different base assumptions I would like just to check that what I want to do is possible with existing wiring. In NYC, where everything is armored ...
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2answers
95 views

How should I connect my solar panels to each controllers for optimal performance (series or parallel) without buying new charge controlllers?

I have 4 355w solar panels and 3 315 w solar panels. I have a 40 amp mppt and a 30 amp mppt charge controllers with 100v Max pv voltage. The distance solar panels to charge controllers is around 15 ...
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1answer
37 views

Upgrade to Smart Switch for a Post Light?

Our old (circa 1970) house has a post light out front. The switch is in an inconvenient location and is thus never used, so I thought I'd drop in a smart switch - a Belkin Wemo, in this case - to ...
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1answer
34 views

subpanel tied to main thru 50 amp double. One 20 amp outside receptacle. Can I put another 20 amp on the subpanel?

hot tub gone but subpanel still being fed from main that has a 50 amp double. Can I run two 20 amp outdoor receptacles from that 50 amp subpanel?
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0answers
17 views

Relay for Westminister Doorbell with Nest Home?

I'm curious as to how I would be able to wire up a relay for my chimebox I have using the Nest Hello doorbell. I recently discovered that my Westminister chimebox is incompatible with the est Hello ...
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2answers
50 views

Should I replace a stove wall outlet that became loose but we bent back the prongs?

The stove suddenly quit working, with only the broiler still working. Upon investigation, the 3 prong stove outlet prongs inside of the outlet appeared to have been spread apart too far so the 3 prong ...
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1answer
29 views

Furnace relay - old one says 18 LRA, replacement says 48 LRA - Does it matter?

forgive me if this is a newbie question. I am replacing a relay inside an electrical furnace/air handler. It is a relay model 90-293Q. The original one I have specifies it as "8 FLA, 18 LRA" but the ...
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2answers
107 views

Can an electrician with 16th edition rules do work in anybody's home?

I did an elim course taking city and guilds for the 16th edition electrical installation and maintenance. Can I still do work in people's houses without having to give certificates the types of work? ...
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1answer
51 views

GFCI No Equipment Ground not testing

A GFCI installed near a sink has this sticker on it. From what I gather online, this means the outlet was installed on place of an old 2 wire outlet, and it's safe anyway, and up to code. But it's not ...
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1answer
53 views

Removal of electric shower and replace with “digital” mixer shower - any significant electrical work needed to “complete” the change?

I currently have an electric shower with cold water feed and its own "isolator" with a string pull outside the shower. Looking to have it replaced (by a professional, so I'm asking more out of ...
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3answers
732 views

How is the phase of 120V AC established in a North American home?

I am in the early stages of reading about converting 120V AC to 240V AC to power an electric dryer. One way to create 240V AC is to "find" two out of phase 120V outlets. My question is HOW does ...
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1answer
109 views

nail through romex copper wire

I'm replacing my flooring, when I removed one of the baseboards it revealed a electrical wire nailed to the floor. What really has me worried now is there WAS 1 area where the previous owner has a ...
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1answer
53 views

How should I protect trimmed wires in a push-in connector?

I need to reroute the wires to a set of recessed lights. The lights have push-in connectors inside of their junction box. The wires were cut at the connectors but there are enough extra terminals. ...
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2answers
65 views

Wiring 3-way switch (power at light and switches meeting in junction box)

Always have trouble wrapping my head around 3-way switches. I have a good book that I usually turn to, but didn't see a diagram for this pattern when a junction box is in the middle. How can I wire ...
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1answer
39 views

Surge Protection for Line Voltage LED Fixtures

I'm installing 120v LED recessed lights in a room, and I'm concerned about them wearing out prematurely. I've had bad luck in the past with florescent lights on the same circuit as the refrigerator. I ...
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1answer
53 views

Kitchen light wiring

Just moved in and there is no kitchen light. There is a ground, two whites nutted together and two blacks AND a white nutted together. My new fixture has a standard hot and neutral. How do I connect?
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1answer
29 views

KitchenAid dishwasher not responding/requiring cold reboot

I recently purchased a KitchenAid dishwasher (model KDTE334GPS0) to replace my old dishwasher. It is on a dedicated 15 amp circuit. It randomly will not respond to button pushes. When I check the ...
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1answer
96 views

32 Amp to 30 amp

We removed our old cook top and purchased a new one. The new top is 32Amp and the old is 30. The electrician told us he could not legally connect it because if we ran all the burners at once it could ...
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5answers
2k views

Ceiling fan electrical box missing female screw holes

I have an existing electrical box that appears to support ceiling fan installation but it is missing the 2 female screw holes I'm used to finding in these boxes. Is there some sort of intermediate ...
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4answers
2k views

GFI outlets tripped after power outage

I live in a rural area that has frequent power outages (Several per month. Less than a minute in duration). When the power is restored, several GFI outlets always trip. I am trying to track down ...
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2answers
78 views

Voltage on the protective earth conductor?

Got a weird situation in my house. Sorry for the horrible "hand drawing" below and also for probably not using the correct terms (i'm not an electrician). Here's one of the multiple circuits in my ...
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2answers
47 views

Garage door needs light switch on to operate

I just bought a house. To use my garage door I just flip the light switch on(in photos) but this also turns on the lights as well. So to have my garage door always enabled I would have to leave the ...
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2answers
3k views

Another 3-way switch problem

I have a setup as follows: power, switch 1, switch 2, light. Wires are power to top of switch one, travelers from switch 1 to 2, and top of switch 2 to lignt. For the following, I will call switch 1 ...
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0answers
108 views

Aluminum wiring with dark discolouration on outside

We are in the process of doing renovations on a home which was built in the early 70s in Toronto. The home has aluminum wiring in most places except the basement which was completed later. When some ...
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1answer
50 views

Switch control both light and outlet

In the en-suite bathroom, there is a switch (1 of 3) that controls the main overhead light and the outlet. Is there anyway to get the outlet to have constant power? Or is this one of those jobs that ...
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2answers
47 views

New Dimmer Switches Work Inconsistently

I recently installed 2 new dimmer switches for new construction recessed lights in my living room (LED bulbs). At first these dimmer switches appeared to be working without issue. However, a few day ...
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2answers
82 views

Is a tight fit acceptable when fitting a GFCI into an old metal box?

It was recommended by the inspector to replace the current 2-prong outlets with GFCI outlets (grounded 3 prong was the top recommendation, but that is a bit out of budget for renovations at the moment)...
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3answers
529 views

Should I use pigtails for pass-through split outlet connections?

I have some outlets that are set up in a split circuit (separate lines for top and bottom). I was going to replace the outlet to update it to a more modern looking one and found that there are 4 ...
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2answers
62 views

Need Help Wiring Replacement Ceiling Fan

I hadn't run into any trouble with replacing the ceiling fans in my older home (~21 years old) until today when I attempted to swap out the ceiling fan in our bonus room. Thinking this would be a ...
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4answers
104 views

Legal to leave electrical boxes open and hanging by contractor

My contractor (fired) left electrical boxes open with components no longer screwed into the boxes. Is this illegal? I discovered after I fired the contractor that he is unlicensed. I am compiling a ...
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4answers
127 views

Can I use two UPSes to power the same device?

I have two identical 230V single-phase "line interactive" UPS'es, powering a few devices which only have one power supply each – half of the devices are connected to UPS 1, half to UPS 2. (The devices ...
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1answer
52 views

More wires than Nest needs

I had an old thermostat with wiring as below image: I wired Air Handler Trane (Model# TWE037E13FB2) in the attic just like it was before: Here is a wiring diagram of Air Handler: However, my Nest ...
2
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1answer
54 views

Dedicated circuit for **Sub Zero** refrigerator - any code requirement?

I have just moved into a new construction home. The home came with a sub-zero refrigerator. I found that the fridge is not wired on a dedicated circuit, but is on one shared with outlets above the ...
5
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2answers
971 views

garage light with two hots and one neutral

I was in the process of replacing a 23-year old fluorescent tubelight fixture in my garage with a similar (physical) size LED fixture. When I opened up the light, I found that from the ceiling box ...
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3answers
58 views

Powering a Window Air Conditioner — 10' 12/3 SJTW extension cord vs new outlet?

TL;DR: Is it fine to use 10' 12/3 extension cord or should I really have an electrician come out & install a new outlet? I recently installed 8,000 BTU window air conditioner (the LG LW8016ER). ...
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3answers
91 views

Fluctuations in electricity use while we are on vacation

We went on vacation for two weeks recently and I noticed that our PG&E bill had some unusual behavior. Our overall bill wasn't that much lower than it was when we were home. Different days had ...
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1answer
84 views

Add Electrical Socket to a light circuit

I have a garage in the building where I live, is equipped just of light, so switch to power on and off and the bulb at the ceiling, i don’t have any power point to plug any simple tools like drill, or ...
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3answers
67 views

15A air compressor blowing 15A breaker

I got a used air compressor rated at 15A (120V). When plugging it in to either of two 15A circuits I have in my basement, it will work for 8-10 minutes, then the breaker will trip. You'd think the ...
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1answer
33 views

Metal camera housing sparking on a metal building

When installing a camera with a metal housing on a metal building powered up by a POE switch located on a different building, sparks are generated when the metal housing touches the metal building. ...
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3answers
63 views

replacing line to the garage (canada)

I am running a line to the garage to replace the existing one. The garage has two standard lights, two LED motion detector lights, 2 quad (4 places to plug in) electrical outlets, 4 double ...
2
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2answers
699 views

What kind of electrical outlet is this? Red, winking-face shape

I found this outlet on the second floor of my apartment. I thought the plug could be an isolated ground plug, but then why is the connector so weird? And I dont live in a hospital. Important: I ...
1
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1answer
59 views

Wiring a dimmer and timer side by side

I'm trying to replace old dimmer and timer (sitting side by side) with new Leviton dimmer and Lutron timer, however the box got me confused as it appears all neutral white wires are tied together in ...
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1answer
30 views

Power fluctuates enough to make bedroom fan almost turn off

It's been happening a while. Lights flicker throughout house and my bedroom fan slows down a lot, kind of like when my ex used to bear down on her hair straightener. I mainly notice it when I go to ...
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1answer
42 views

Installed new LED transformer with spring terminal, light won't turn on

Transformer: https://drive.google.com/file/d/1AcPLA2Pc8bgubRKxyaK6iwiYcjKNx6BZ/view?usp=drivesdk LED light: https://drive.google.com/file/d/1A_YCzH6FLdCCPRd5q3_LZW30tqzxeZZ5/view?usp=drivesdk Things ...
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1answer
19 views

How to set up this LED R7s lamp?

I would like to install an Osram LED R7s lamp using this holder in my living room. Now I'm wondering whether I can just hook it up with the AC like I would do with regular LED bulbs or do I need ...
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0answers
23 views

Changing outlet with 3 live wires, 3 neutrals, and 1 ground. Question / seems kinda crowded? [duplicate]

Images: https://imgur.com/a/NbXxkFl I was going to change out this outlet. It was previously all shoved together in a back-wire type outlet (The kind you just stab in). Was going to replace with a ...