59
It depends on the type of bulb.
Regular incandescents won't consume any electricity if the bulb is dead, since there's no continuous path for the current to take. It's just like an open switch.
With CFLs and LEDs, it depends on why the bulb burned out, but in general they will consume some amount of electricity even when burned out. Some CFLs may even ...
16
This is what happens when you randomly tear stuff off the wall without taking pix first. I'm guessing you assume the wire colors are meaningful in some way; colors mean less than than you think, and less than nothing at all in 3-way circuits. That stinks, so get some yellow electrical tape; we need to make colors meaningful.
Looking at the 3-way switch ...
answered Jul 20 '19 at 17:38
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12
The cable with the white wire that's connected to the two black wires is a switch loop:
Normally wires with white insulation are used only for neutrals, but code makes an exception to allow for use of the white wire in a cable used as a switch loop as a hot rather than a neutral.
If you'll look closely in the drawing, the whites used as hots are wrapped ...
11
Here's a quick diagram. Switch 1 in the first box has 3 wires, and so does switch 2. In this diagram sw1 is "up" and sw2 is "down" so no current flows left to right.
Just join the "down" wire on sw2 (the one you don't want) with the wire that proceeds to the light (or from power), disconnect or remove the other "up" wire, and then sw1 is in complete ...
10
It is possible, as long as they use the same power (or resistance).
However, it comes at a risk. If one of the bulbs uses less power (for whatever reason, maybe damaged/end of light ... see Ferrybig's remark below for a good reason), the other uses more, and will break (faster), so it's not a perfect solution.
Because of P = V * I <=> 150 = 110 * I, I = ...
10
Someone ran out of white wire
It appears the previous installers ran out of white wire to use for running neutrals, so they grabbed the spool of green wire off the back of the truck to keep the job going. As a result, you'll need to treat the green wires in your switch boxes as neutrals for the purposes of installing your smart switch. This is workable ...
9
Add some ground pigtails
Take the existing bundle of bare (ground) wires, and add a couple pigtails of bare or green wire to the bundle, making sure the bundle is joined properly using a wirenut or push-in connector instead of just being twisted together. The other ends of the pigtails simply land on the green ground screws of the new dimmers.
9
So your existing fixture (assuming standard US wiring, you'll have to verify) has a hot (black), neutral (white), and ground (bare) and has constant power. The additional lights will need 4 wires - constant hot to travel to the switch (black), a neutral (white) and a switched power that will come back from the switch (red).
The existing wire (assuming 14G ...
9
Why are light switches so often wired in the wrong order. For example,
on a single board, the switch closest to the hallway is for the lounge
while the switch closest to the lounge turns on the hallway light.
Because money. Paying someone else less money to do a set amount of work is a way to increase profits. The electricians for tract (non custom) ...
7
That is a perfectly functional way of splitting a single hot (highlighted green in your sketch) to supply power to two separate switched fixtures. However, most smart switches require a neutral conductor in the switch box so there can be an always-on connection for the "smart" circuitry.
It's hard to tell whether or not you have this because all of your ...
7
I found almost that exact same image behind a bathroom vanity light fixture that I took down to replace. Needless to say I was flabbergasted that such garbage workmanship would be hidden behind a fixture.
You should look very closely at what is just behind the place where the romex cable is coming out one hole and reentering the wall cavity at the slot on ...
7
The decorative nut has been removed but there is still a small little nut that is holding the little escutcheon up against the glass. Use one hand to hold the glass and try to loosen the nut with your fingers, if you can not get it to move with your fingers try a pair of pliers gently.
7
Yes, they are giving you separate neutrals so you have the flexibility to put the fan and light on different circuits if you want to. Neutrals must be supplied from the same circuit as the hot; you can't return current from circuit 1 on the neutral from circuit 2, or it causes a number of problems and safety threats.
In an application like yours, feel ...
answered Feb 18 at 18:13
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6
The bloke at the big-box store is out of his mind. Having multiple GFCIs fed from the same feed is not a problem whatsoever -- it's something that's done all the time (just imagine a panel loaded with GFCI breakers). Furthermore, the requirements for fixtures in 410.10(D) only hold for a zone that extends 3' beyond the edge of the tub or shower stall and 8'...
6
The fact that the white is with the blacks is very important. Most of what you need to know is in the positions of the existing wires; don't be in a hurry to tear it all apart, or you lose that critical info.
Color-coding is not by wire function, it's how cables are made.
That white has been reversed to be a hot. This is because it's in a switch loop, ...
answered Mar 16 '19 at 22:33
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6
Generally speaking, you don't want to have a fan/light - or more specifically, a light - on GFCI because if the GFCI trips due to something else on the circuit then you are in the dark. As I understand it (I am not an electrician, but I have seen other questions on this topic and I heard this from my own electrician years ago when he installed heat/fan/light ...
answered Sep 19 '19 at 17:07
manassehkatz-Moving 2 Codidact
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6
As you know, "green = ground" and "white = neutral". As you probably also know, ground and neutral should only be connected in one place (main panel) and not in individual switches or other devices. So that means one of two things:
Broken Neutral
This is the classic situation. A neutral breaks. Instead of running a new neutral wire or a new cable, someone ...
answered Dec 2 '19 at 1:40
manassehkatz-Moving 2 Codidact
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6
They stopped making that type of switch some time in the 1940s I believe. I personally would not replace it with something found on auction sites or antique sellers unless there was some good reason to maintain period authenticity, i.e. a museum display. Otherwise, anything you can buy is going to be just as old and prone to failure. Just replace it with a ...
5
If it is a true incandescent light bulb: NO, apart from very very minor losses (through insulation imperfections and transmission line effects) due to the fact that a longer run of wiring is now live.
In addition, if it is an old school flourescent fixture: Very minor losses due to EMI filtering circuitry.
In addition, if it is a LED bulb using a capacitor-...
5
One of the switches has failed and will likely need to be replaced. There will be two "three way" switches and one "four-way" switch. It's the four-way that has broken. The switch may feel different when you toggle it.
Unscrew the bulbs until you get it fixed.
5
Yes, you can connect to the same neutral that's currently part of the switch circuit (the source neutral, really). Be sure to leave all existing neutral connections intact.
5
I see what appears to be threads at the top of the cover/diffuser. A counter-clockwise turn should remove it. I also see paint and drywall mud that MAY be preventing you from turning the diffuser.
5
I feel that it is not a good idea as a standard practice. But conceptually, it would be fine to use two 120V filament type light bulbs in series on a 230V system. I have done it before, briefly, and the bulbs appeared pretty normal. So feel free to experiment. But in the long run, maybe the bulbs would not share voltage equally and one will fail prematurely. ...
5
The question depends entirely on whether the fixture acts as its own junction box, with full containment and a strain relief clamp. If it includes a UL listed enclosure, all good. The instructions should make this fairly clear.
If not, grab an old work (remodeler) box and pop it in. Be sure you'll clear your studs before you start cutting drywall.
5
Mark that green wire white
That green wire behaves at both ends like a neutral. I think it is one. I would get some white tape and spiral wrap it around that green wire, to mark it most of the visible length. Do that at both ends. This is still illegal, but if you don't happen to have a spool of white THHN wire in your kit, you are certainly better off ...
answered Dec 2 '19 at 3:15
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5
It sounds like the element in the lamp welded and caused a dead short. With the switch off it worked the first time but the second time the switch welded. It happens. Time to replace the switch
4
I don't know of any restrictions off the top of my head other than in closets and bathrooms. I would make them show you the code reference sounds like someone missed the change and is two lazy to do it they way you wanted it.
4
This is a pull switch that's on the light fixture??? Somehow you spliced into the wrong side of the pull switch.
Move the hot wire to the other side of the pull switch, that should take care of it.
Or, well I don't know what stage of work you are at, but this might be a great time to install a proper light switch and dispense with the pull switch ...
answered May 30 '17 at 14:17
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