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Questions tagged [multiway-switch]

Use this tag for any time lights, fans, or devices are controlled from more than one wall switch location.

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0 votes
2 answers
52 views

Help identifying wire from unknown light switch

I have a near century home that I have been working on and remodeling and down my todo list has been to identify a light switch that doesn't appear to do anything. I have box with two switches ...
0 votes
2 answers
38 views

3-way switches On/Off Positions Changed

The lights in my garage are controlled by two 3-way light switches. One in the hallway leading to the garage door and the other in the garage itself. For the last 5 years, the lights would be off if ...
4 votes
1 answer
436 views

Replacing a three-way switch wiring with smart switch(es), is it possible?

I have a 3-way setup and I'd love to make it smart, but I'm not sure how. Here's my setup: Box #1: 2 Wire Cable (Black, White) + 3 Wire Cable (Black, White, Red) Box #2: 3 Wire Cable (Black, White, ...
0 votes
1 answer
60 views

How should this fan and light be wired correctly?

I need to replace a combination switch because I don't think it's wired safely and I think the variable speed control killed the current ceiling fan. The light is a three way switch - a second switch ...
0 votes
1 answer
75 views

Help me understand my 3-way light switch installation

I'm trying to automate light switches, but struggling to understand the way my switches were installed. Electric eng. is obviously not my field, but I've researched 3-way switches, so I have a basic ...
0 votes
1 answer
35 views

Mogul base 3 way only on 2nd and 3rd rotation of knob

I recently bought a new mogul 3-way base and new bulb. The first click of knob nothing happens and then the 2nd and 3rd click light is on, normal, and at same brightness. Tried 3 new bulbs all the ...
0 votes
1 answer
74 views

How to completely remove a 3way light switch

I have a 3-Way “Master Switch” that controls all of the outlets on the main floor. Is there a way that I can remove both switches so there is no way to turn the outlets off except for the breaker?
2 votes
2 answers
3k views

Bizarre behavior after replacing a three-way switch

I’ve encounter very bizarre behavior when replacing a very old three-way switch in my mother’s old house, and I’m trying to understand just what might be going on. One light is controlled by two three-...
1 vote
2 answers
95 views

Wiring diagram for 3 way switches at end of parallel circuit

I have a wiring diagram that is similar to what I have but not quite. I have power running into the rest of the new school room but am unsure what my screw up is on this DIY project. For clarity, I ...
0 votes
1 answer
44 views

Can you use wall switches and fan speed regulator in conjunction with a ceiling fan remote or do you have to choose between the two control options?

I removed an old ceiling fan with a light, wired to 2 3-way switches and a dimmer for the fan speed...so 4 wires in the ceiling box-black, red, white, green. The new fan has only 3 wires - red, white, ...
2 votes
1 answer
122 views

Can I exchange two-way and three-way switches in the same box for lights?

I want to change my light configurations on my house, and think I have an easy change but want to confirm with some experts on this site! I have 2 switches that are by my front door. A single pole ...
0 votes
1 answer
42 views

3-way switch with lights attached to both switches

What's the correct way to wire two 3-way switches that each have lights attached to them? This is my guestimate... I saw this exact question from 2017 but had trouble following the diagram, and am ...
0 votes
1 answer
128 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 ...
1 vote
1 answer
357 views

Two 3-way switches from one source

I have two light fixtures that I'd like to have on separate 3-way switches. Can I do that from one power source? Can I split/daisy chain the power source and 'travel' them to each light fixture and ...
0 votes
0 answers
31 views

3 way switch, possible compatibility issue?

I’ve been remodeling houses for 20+ years and have never seen the issue I’m having before ,if a dimmer wasn’t in the circuit. Replacing switches to new style (not “smart” rocker switches. Replaced ...
9 votes
6 answers
11k views

How to reverse a three way switch?

I have a set of lights that are controlled by two different switches. Flipping either switch at any time always changes the state of the lights (on to off or off to on). I have OCD and so I want both ...
1 vote
5 answers
13k views

Does true wireless 3-way switch exist?

I currently have a 3-way switch setup which is made up of two 3-way switches to control a hallway light. Due to oversight, an additional (4-way) light switch is much desired in the middle of the ...
0 votes
0 answers
33 views

4-way Switch, and two 3-Way Switches, controlling two stairway lights?

I have three switches, one is four way, two or three way, and they control two stairway lights. The four-way switch is in a bedroom in the basement. I want all the switches to work together so that ...
0 votes
1 answer
78 views

Troubleshooting Sonoff ZBMINIL2 installation for 2-way switch integration with Home Assistant

I purchased a Sonoff ZBMINIL2 to transform a 2-way switch setup into a smart switch for integration with Home Assistant. These two 2-way switches control a standard ceiling light. Following a ...
11 votes
2 answers
901 views

Run single strand of K&T wire through conduit under floor?

I have a contractor putting a pocket door in a wall in our 1925 house. He removed plaster from one side of the wall and exposed a single strand of Knob and Tube wiring right where the door needs to ...
2 votes
2 answers
5k views

Three way switch circuit leaking voltage

I have a hallway light fixture controlled by three switches (panel -> 3 way -> 4 way -> 3 way -> fixture). Lights in this fixture routinely burn out within 6 months (incandescent, cfl and ...
4 votes
2 answers
991 views

Why do my lights stay on after adding one to a three-way circuit?

I have a two-year-old home with an unfinished basement that I wanted to add a few recessed LED lights to an existing run of four traditional light bulb fixtures. When I completed the wiring and ...
1 vote
3 answers
43k views

Adding Light to Existing 3-Way Switch Configuration

I currently have a 3-Way light setup like the one pictured below but I want to add an additional light to the circuit on the right hand side switch. I can not add any wires between the two lights as ...
-1 votes
1 answer
64 views

More 3 way working questions

First of all I wanna thank those that replied to my original question where the basic answer was - you don’t have a neutral wire and need to get a switch or switches that don’t require one. So I did ...
0 votes
2 answers
45 views

Dynamically switching modes -- pair of 3-way switches controlling pair of lights vs. individual control of each light from nearest switch

I want to add a switch to an existing lighting circuit to toggle the function of the circuit. Currently, I have a 'standard' 3-way lighting circuit with two switches at opposite ends of a space, ...
0 votes
1 answer
122 views

Can one load be controlled with three 3-way switches?

I recently bought a house and the 3 switches controlling one light fixture aren't working properly. Here is a diagram of the three 3-way switches and wires: The first thing that comes to mind is: ...
2 votes
1 answer
44 views

Changing a 3-way switch to a smart switch that controls a bank of outlets

Summarize the problem I am trying to replace an existing 3 way switch with a smart light switch (Kasa Smart Wi-Fi Light Switch, 3-Way | HS210). The existing switch has wiring I can't quite figure out, ...
2 votes
1 answer
86 views

How do I wire a a new light switch to old wiring?

The far right (looking from the back) is one way and the left is two way. How would I wire this into a new socket? I presume it’s still the two red live into the 2 way, etc. The new device: The ...
0 votes
0 answers
27 views

Separating two lights from one switch

I recently converted one big room into two. The original lighting in the room was two ceiling fans on one switch. When building the separating wall I pre-installed a new switch and stubbed up about 20 ...
3 votes
0 answers
87 views

Help with 3-way switch/light troubleshooting

I've been helping a friend out to add some improvements to his house, and we've run into some issues with a 3-way switch/light setup and could use some assistance. For context, he bought the house ~3 ...
0 votes
2 answers
55 views

How should I install a three-way smart light switch in this situation?

This wiring is in a house that was built in the late 1980s. The junction boxes in question are located in two ends of the kitchen. One junction box has 4 switches (located at Kitchen entry), and the ...
0 votes
1 answer
816 views

What is a traveler wire and how does it work?

I have been doing little bits of electrical lately, mostly wiring up basic single pole switches and outlets and I have been trying to learn more as I go. When looking at some diagrams for 3 way ...
0 votes
3 answers
52 views

Single pole switch at the end of a three way switch

I have a pair of 3-way switches in the basement, the switch furthest from the power source is by a walkout door. There is a light outside the door which uses a switch that connects to the 3-way ...
1 vote
1 answer
89 views

Identifying which is neutral in 3-way wiring

I am doing a kitchen remodel that involves some rewiring. I am wiring a 3-way light switch, and my wiring diagram looks like the following drawing: However, the light does not turn on in all 4 ...
1 vote
2 answers
180 views

How can I get a hot wire in this 2-gang with only traveler wires?

Edit: I know my initial question was a bit tricky to understand, so here are some pictures as requested. In the box I have two 3-way switches for different light circuits. I want to put a put a ...
0 votes
2 answers
39 views

Add an additional light to the end of a standard three-way switch/light configuration

I've seen this question before, and I found one answer that sounds feasible. I need to add a light at the top of a stairwell that has a three-way switch/light configuration, BUT, I cannot fish ...
5 votes
5 answers
42k views

What is the correct way to wire a 3 way switch where power comes into the middle switch?

I found two books and neither had the diagram. Only I found two separate diagrams that did not work. The setup: Box 1 with 3 wire runs to box 2. Box 2 has 2 wire power in, 2 wire to light and 3 wire ...
0 votes
1 answer
42 views

How do I maintain equal hot and neutral paths when wiring 3-way switches with lights on both ends using a /4 wire between them

This is a follow-up question to the answer by Harper - Reinstate Monica https://diy.stackexchange.com/a/110881/181433 the suggestion to use a /4 wire is what I have been trying to implement in ...
0 votes
1 answer
117 views

Motion (vacancy) sensor 3-way with dimmer switch other end

I’ve wired a Lutron MS-VPS5M (vacancy, supports 3-way wiring) switch to the inside of a walk-in closet, so it will turn off 5 min after someone departs the closet. I’ve also wired 3-way dimmer switch ...
-1 votes
1 answer
31 views

Adding a dimmer switch [closed]

I bought a dimmer switch that is digital and it is a remote switch. Come to find out you need a master switch to run two dimmer switches to one light. The only way to get the master switch is to buy ...
1 vote
1 answer
10k views

Running power to a single switch from a three way switch

In my garage I have a three way switch that powers the ceiling lights in the garage. There is one switch near the garage entrance near the garage doors, and one switch near the back of the garage. I ...
1 vote
0 answers
29 views

Is this light-switch wiring safe and up to code? Kasa wifi switch next to 3-way rocker switch

My house was built in 1979. Today I replaced these 2 lights switches. The left switch was a simple switch. The right one was a 3-way switch (i.e. there is another switch that also controls the same ...
0 votes
1 answer
102 views

3 way switch for hallway

I just bought my first house. I was changing out the yellow switches for flat white ones. I took everything apart and put it back together the same way but now I'm running into issues where I either ...
0 votes
1 answer
115 views

By UK electrical standards, can I have two lighting circuits go into the same double switch?

I would like to add an intermediate switch to an existing lighting circuit. I would prefer not to cut a new hole in my wall for a completely separate switch and so my ideal choice is to replace an ...
4 votes
2 answers
775 views

What does a 3-way switch with neutral and black tape mean?

While replacing a failing 3-way toggle switch I noticed 2 unfamiliar things in the switch wiring: A white neutral. I have not come across switches with neutral connections in my limited time as a ...
2 votes
1 answer
395 views

Add smart switch to 2-way switch

I live in Spain. I have this switch near my door: Black is live and the 2 greys go to the switch/outlet in my bedside: The squares are switch to the left and outlet to the right. Green/Yellow is ...
0 votes
2 answers
308 views

Wiring 2 Speed Blower Motor To DPDT / 3 Prong Plug

I was hoping to get confirmation on how to wire this up properly. I’m wiring a 2 speed blower motor to a DPDT switch for high/off/low functionality, and from there to a 3 prong power cable. Blower ...
2 votes
2 answers
785 views

Can I install a three-way smart switch with my wiring?

I think that my house has a three way switch wired like this diagram. I think it's this one because both switches only have one bundle with three conductors and a ground coming in. Would I be able to ...
0 votes
1 answer
56 views

4 way switch replacement

I am replacing a 4 way switch, and I'm confused where the wires need to go on the new switch. The old switch had a pair(A) of red and black wires going to 2 terminals labeled line 1, and another pair(...
0 votes
1 answer
62 views

Wall socket not working after changing lighting connection

I am having a problem in my apartment after making changes to the lighting switches. I live in Germany and live in my own apartment. We had one multi-way switch and one normal switch which controls ...

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