Because it’s improper, it shorts the circuit and trips the breaker when the switch’s on. This miswiring causes the light to turn on even though the switch is off. This pain in the butt frequently happens when you have a switch loop set up.Ī typical DIY guy mistake in a switch loop setup is when all black and white wires are connected.
Even though you reversed the way you plug the wires, the result stayed the same. Now you think you did the proper process - hot-to-hot wire and neutral-to-neutral wire, but in the end, the light switch trips breaker when turned off.
NO POWER IN ONE ROOM FROM THE LIGHT SWITCHIES INSTALL
When you install lights, you buy new fixtures, switches, and perhaps a new set of wiring too. You Have a Miswiring in a Switch Loop Setup What If Your Switch is a Single Pole Single Throw?.A Double Throw Switch is Causing the Problem.You Have a Miswiring in a Switch Loop Setup.One for the room light, a second for the closet light, and the third for the fan but each room has the switches differently wired. All of the switches randomly wired it seems. Two gang box in each room with a single switch next to a double switch. I didn't like the way they did the switches though. I did put one in the master bedroom and it was nice to have it already wired. He did commercial electrical work for 15 years before jumping over to the power company.ĮTA- All the bedrooms had a defunct switch but I know what they were for, they were for the ceiling fans that were not yet installed. It's an open floor plan and some post and beam construction so I get that there were some compromises but some have no good reason. So many "what the h were they thinking wiring this place". 3 gang of switches, 2 are accounted for, one is the stairway light, the other lights a front room off the stair landing, the other I wonder if it was intended for the other front room but they instead wired into a 2 gang box that does the porch light and the other front room. I have one of those by my front door/stair landing. It is these little findings that make owning an older home so interesting! Then the next people who will own your home will think what the hell was this for!! And on the back of the blank cover write, "I have no idea what this is for" and put the date on it. Either re-use the switch for something you want, or as others have suggested, remove the switch, cap off the wires, and put a blank cover over the wall box. I know you want to find out where those wires are going, but if you don't, don't think about it too much. Then the new owners add more things, and then years later they sell the place, and the next owners find their things and think, what the hell is that for? Homes that have had previous owners will always have some things in them that new owners find and think, why the hell did they do that? Is there a tool I can buy that would make tracing the wire easy?Ĭan you use the switch to put a new light or switched outlet in the laundry room? Maybe you can put up a light or an outlet exactly where you/your wife wants one and use the switch for that. This laundry room switch is harder to figure out though. Box just had the doorbell transformer on it, black wire was feeding it, red wire was capped off, doing nothing. Found out the other end of the 14/3 went to the crawl space under the stairs to a junction box. The red wire in the 14/3 was the switched leg. The switch was connected right to the feed, then there was a 14/3 with the black also connected right to the feed. It was a 4 gang box next to front door, 4 switches - 3 switches control lights, 4th didn't do anything. I actually already ran into that once before in this house. I wouldn't be surprised if the wire went to some random light fixture or outlet box and was just capped off not connected to anything. How can I trace this switched leg and find out where it goes? It's a 14/2 Nm-b, neutral is still connected, hot (switched) leg now disconnected. So whatever the switch controls, it's the only switch that controls it. It's not a 3 way switch, just a double pole. I tested both top and bottom outlets and EVERYTHING works. And yes, I'm aware of the tabs on outlets. I have tested literally every light and outlet. Even with the switched leg disconnected, everything in my house works. It had power connected to it, which I disconnected. I have a light switch in my laundry room that does nothing.
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