light switch screw touching metal box turns light on Assume you have a metal device box, correctly installed with 14/3 cable incoming and a three-way ungrounded light switch installed. Assume that the box is correctly grounded using the ground wire attached to the ground screw of .
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0 · touching screw on switch box
1 · touching screw on light switch
2 · touching light switch feels electric
3 · shocked by light switch
4 · light switch shocking me
5 · light switch grounding
6 · light switch feels electric
7 · electrical current when touching light switch
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If you touch the screw and get a shock there has to be a place where the hot leg returns its potential through your body to ground. It's very easy to troubleshoot. If you are . If your light switch has a metal box around it, or exposed metal screws, it is vulnerable. Metal can conduct any wiring issue that is happening in your house. It can also cause a static shock.
I realized I was leaning on the lower screw of the light switch and thought it had a metal burr or something sticking out. I touched the screw with my hand and felt electric current flow through . I just noticed a mild shock while touching the metal light switch box in the garage. The switch is probably 20 yrs. old or so. Should I suspect a defective switch? I took a look at .The switch could be defective or there may be a live wire contacting the body of the switch, which is where the screws thread into. You might be able to troubleshoot it, but it's also something a . Assume you have a metal device box, correctly installed with 14/3 cable incoming and a three-way ungrounded light switch installed. Assume that the box is correctly grounded using the ground wire attached to the ground screw of .
touching screw on switch box
Interesting, thanks for the info. None of our boxes have any metal on them at all, the only thing grounding them is that green screw. Your system makes more sense though. Wiring up a 4 gang switch box sucks trying to route all those .
120 volt outlet metal box
The only thing different about screwing the switch to the box and having it hanging out is the ground. The metal strap on the switch is connected to the ground screw. So if the box is not grounded and is somehow being . Light switch screw types. When replacing a light switch screw, it is important to know the different types of screws and their sizes. All modern sockets have standard-size M3.5 (3.5 mm) diameter screws, but the lengths can differ. The most common screw diameter is 6-32 (thread diameter of #6 and 32 threads per inch), with a countersunk angle of 82.
As I mentioned, I believe #1 can be ignored. It's caused by someone's shaking hands or a weird angle of entry before seating the screws that allowed the screw posts to touch the metal wall. Once installed, those posts and walls are intentionally separated and quite safe. However, that is only relevant if you have a metal switch box. If you aren't sure you can do this safely, DON'T. If you can, check all the switches, with the relevant light on, and off. It sounds as if someone has wired a live, into the earth feed for the lighting circuit, so when the electrician ( correctly ) "earthed" the sunken metal box behind each switch, that makes it, and the screws live.If you have a metal Box, there should be a green screw with a bare copper wire attached to it on the inside. IF it is a plastic box, you should attach the bare copper wire to the green screw on your single pole switch. screw back in the switch before you Turn back on the power and check the switch after to see if it works.
Watch out for ground wires touching screws or metal box. Often trouble happens when you stuff it back in the box and a ground wire touches a hot screw. Blam, breaker trip! But it is also bad if a ground wire touches a neutral screw - that will cause GFCI and AFCI trips.So i'm replacing the light switch in my room and I noticed that the old light switch had no grounding screw and only had two wires going to it. My replacement light switch does have a grounding screw in it. looking in the box there is two copper . I just saw this thread. I also have a hot light switch inside the house but it is not a dimmer switch. It is a regular switch. The switch itself seems to be hot as well. I first thought it was only hot when the switch was on, but it seems to stay hot on the screws and in front of the switch. I have metal screws.There has been a light switch that shocks me when it's turn on and I touch it. Only once did the actual switch shock me, but every time I touch the screws on the front faceplate while the switch is on I get shocked. When the switch is off I haven't been shocked. Is this a cause for major concern and is ok to just leave the switch off?
Turn the main switch on and make sure that the switch is working properly and is not moving anymore. Method 2: Re-install The Screws Tightly This is one of the quick methods to fix a loose light switch and will not take more than five minutes. Also the switch mounting strip (yoke) and the box if metal are to be bonded to said ground wires, using pigtails (jumper wires wholly within the box) if needed. Screws holding cable clamps and screws relying on the wood behind to dig .9 times out of 10 it’s going to be static electricity from a light switch. During the winter i arc to the plate screws all the time. If you were grounded and you completed the circuit for 120 and it’s the first time you’ve been hit with 120 then you would have .
431K subscribers in the electricians community. Welcome to /r/Electricians Reddit's International Electrical Worker Community aka The Great Reddit. There should be power at the light switch verify with the meter or non contact tester, if power is there turn off the breaker and verify power is off, now replace the switch wire for wire, if it is a standard 2 wire switch just move .
Upgrading a light switch to a new one, but can't get the old one out. Plate came off no problem, then the top screw to the switch. I get to the bottom screw and turn. At first it comes out about 1-2/8ths of an inch, but then it continues to turn freely with no more progress coming out.If it is a metal box, the 6/32 device screws can satisfy the ground to switch as long as the box is grounded. If it is a plastic box, you need the wire on the green screw to ground it. This meets electrical code in the US NEC. Yes, i have an electrical license We had the light on full power for about 10-15 minutes, went over to turn it off and the wall switch is fairly hot to the touch, so much I wouldnt want to touch it for more than a second. Also, the screw directly below the switch is hot as hell as well. I've replaced a light switch in my kitchen and am having problems screwing it back onto the back box. The problem seems to be what appears to be adjustable lugs, which are currently unsecured. So when I try to put the screws back in, they push the lugs to the back of the 3.5 cm backbox and the screws can't reach the lugs.
Changing out a simple light switch in a house. I presume this switch/box may be from the 70's or 80's. On the old one, they have just looped the stripped wire around the screw and tightened it. I presume it's the same on the new one, just in a different place. Breaker will be turned off completely to avoid any guesswork on individual breakers.The ground screw is green and attached to the metal framing around the plastic switch casing. If you have 3 other screws that are brass and silver and also the 1 green, that’s a 3 way switch. . the neutral is in the light box but NOT connected to the light. It is ran down to the switch box and connected to the switch. Then ran back up to .
Hallway light is a 3 way switch and I have wired a light under the stairwell off of one of those switches. When I flip the switch the hallway goes on, other turns off. Three way has a ground, white, black and red. I have 10-2 and spliced the colors together and tried it. When that didn't work, I spliced the red from the switch to the 10-2's black.It provides a path for electricity to travel to the ground. To install a metal plate, turn off the power to the light switch at the breaker box. Remove the light switch cover plate and unscrew the light switch from the electrical box. Place the metal plate over the hole in the electrical box. Screw the light switch back into the electrical box. The light switch in my bathroom has been acting oddly the last month. When I flip the switch on, the light turns on, but doesn't stay on. If I wiggle the switch, it will stay on. Sometimes I barely need to touch the switch, sometimes I need to wiggle it for a few moments. I've swapped the light bulbs, it makes no difference. Reconnect the light bulb after reassembling the touch light. Check your lamp’s functionality by plugging it into an outlet. Step Eleven. If the touching light still won’t turn on, swap out the touch control within the light base. Take the light’s bottom out from the base and disconnect it to reveal the touch control.
Girlfriend went to turn the light switch on for her closet, she got shocked and it was a noise loud enough I heard from across room. . Have her rub her feet on the carpet and touch a door knob, she if that's the same feeling. You usually won't hear 120V because it's not strong enough to jump much of an air gap. . The only route for possible .
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light switch screw touching metal box turns light on|shocked by light switch