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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votes
1answer
99 views

How to wire 2 switches with 1 hot wire?

My living room area power is apparently controlled by 1 switch. When on it powers all outlets and a light above the tv. Also, the switch has to be on in order for outdoor light to function and for ...
1
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2answers
28 views

Wiring Help Lutron Diva Dimmer and Claro 3-Way with Claro First in Line

I am having trouble figuring this out. Attached is a diagram, best I could do given the tools I have. Please remember I am not an electrician so explain like I am 5 please. In a nutshell, the 14/2 ...
0
votes
1answer
45 views

Wiring for stairway & two lights on landing

I'm looking for how to wire an MK switch on my landing. I thought I had a straight forward two-way setup with a switch at the bottom of the stairs and one at the top. But the upstairs switch is two-...
0
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1answer
93 views

No neutral in metal switch box for three-way switches in an older 1930's home

This is a 1936 home in Virginia with BX wiring and metal switch and outlet boxes. We went to replace original three-way light switches located at the top and the bottom of the stairs controlling a ...
1
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0answers
61 views

How to abandon one 3way switch and convert the other end of the line switch to put in a smart dimmer?

I am a fairly savvy DIY and am perplexed on how to proceed. I want to remove one 3 way switch with a red, white, black and ground. I am assuming the white is a neutral, but does not appear to be part ...
2
votes
2answers
130 views

My successful electrical weekend project ended with a 3-way from hell! Help

Been updating the outlets and switches in my office building for last couple of days and I am having trouble with the last of 70 receptacles/switches... a-3 way switch that seems to be wired in a ...
3
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3answers
38k views

Quickest way to identify line wire and load wire in a multiway switch

I am upgrading a lot of light switches in my home to Z-Wave smart switches. It is easy when it is a simple switch, but a 3-way, 4-way or n-way switch circuit is trickier. When doing so, I need to know ...
6
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6answers
13k views

Three way switch with two common wires?

Im currently trying to upgrade two three-way light switches in the kitchen to some new smart three-way switches. The issue I have run into though is that there appears to be two common wires on one of ...
0
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2answers
100 views

Apartment using ground wire as neutral

I was answering a trouble call in an apartment today that a pendant light fixture had come down and was hanging by the wiring. I went to remount it, but noticed that the light fixture wiring was ...
2
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3answers
64 views

How to install a Wemo Three-way light switch in this configuration?

I currently have this configuration in my home and I would like to replace the left switch with a wemo three-way Smart light switch. I'm not able to find any information online on how to do this with ...
0
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2answers
528 views

Remove a 3 way switch to install fan remote

Newb so be gentle. I installed a fan that doesn't seem to be wired for a separate fan and light switch at the wall, so I capped off the red wire from the ceiling at the fan, and installed the fan ...
1
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2answers
2k views

Replaced Outlet and Switch, Now Light Won't Turn Off

I had a switched duplex receptacle controlled by two 3-way switches. An electrician installed a ceiling light using 14/3 wire running from the outlet. Everything was working - the 3-way switches ...
0
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2answers
77 views

Can I use smart switches for my 3-way?

I have a 3 way setup and one switch has white black and copper wire and the other one has the same but with a red wire. Can I use smart switches for these? Thanks! Joe
0
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1answer
270 views

Convert Three Way to Single Smart Switch

I have two switches set up as a 3-way and I'd like to take out one and install a smart switch for the other. I know I need a neutral, and I thought things would be good when I looked inside, but it ...
4
votes
1answer
90 views

Changing out an old light switch

Some background on this: the house is old, 1960's, and the previous owners loved having multiple switches run a single light. I am changing out a light switch inside the house that runs an outside ...
0
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1answer
54 views

Adding a light to existing 3-way

Adding a light... Power source 12-2 wire comes in to light at the top of stairs then 12-2 down to first switch then 12-3 down to second light then 12-3 to second switch. Can not get the second light ...
3
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0answers
49 views

Fried switches, light fixtures, or wire?

In an attempt to fix a wiring problem from five years ago, I made a huge error. Here's the scenario: Box 1: Has switch #1 in a four-way set up (it's a 3-way switch) and is where the power comes in. ...
0
votes
1answer
6k views

changing from a 4-way switch to a 3-way switch

Hi, I have a 4-way switched light in my entryway. I am hoping to install a 3 way smart switch for this light and cap off one of the switches. Referencing the attached picture, I am hoping to replace ...
3
votes
2answers
51 views

How to add a light to an existing 3-way circuit

Trying to add a light to an existing 3 way circuit. I have access from one light switch to my first junction box. The rest is Asbestos walls so I can't touch. Drawing below. Much obliged.
0
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1answer
64 views

Eliminating a 3 way switch

In my living room is a ceiling light controlled by 3 switches within the living room. Two switches are 3-way and one switch is a 4-way. I would like to completely eliminate one of the 3-ways from the ...
0
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3answers
2k views

Indicator Lamp (LED) on 3-Way Switch

So I bought this home a few months ago and I removed all the outlets and switches to replace room by room. In the breakfast room just inside from the garage, there was a switch plate with a small ...
1
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1answer
95 views

Convert Three-Way to Single Switch and Add Smart Switch

Would like some feedback/instruction on converting a three-way to single switch and then install a "smart" switch that requires LINE, LOAD & NEUTRAL. Current Configuration: ( Switch A ) has (2) ...
1
vote
1answer
42 views

In a three way switch, why would the “open” traveler wire test at 17VAC [duplicate]

While I had my 3 way switches open, I used a DMM to figure out what was hot and cold while flipping the switches. While my traveler shorted with the line feed showed 120VAC as expected, at least one ...
3
votes
1answer
89 views

How to wire a 3-way dimmer switch in box with three cables

I was thinking I would replace one of our dumb switches with an Eve smart switch. I opened it up to make sure it had a neutral wire, but it was wired so poorly that as I pulled on the old switch, ...
0
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0answers
42 views

Why was one of the light switches wired differently from other location?

Last night I installed a master dimmer and a companion dimmer in the dining room. Upon removing the wall plate to one of the two switches, I discovered that a black wire was attached to the black ...
3
votes
1answer
176 views

What do I do with these extra multiway wires in my light fixture?

I have been modifying some fluorescent light fixtures for led lamps. Ballast bypass lamps. Have done several so far and all good so far. I have a fixture that is a 4 lamp, 2 ballast. It is on a 3-...
1
vote
1answer
45 views

2 single switches; want to create three way switch

I'm trying to improve the quality of lighting in my house. I used to do electrical work, but only got so far into the field. So... I have a 2 single switches; one controlling a light and another ...
2
votes
1answer
573 views

Swapped out light switch and now WIRES have no power?

We’ve been swapping out all our outlets and switches in our house....with minimal problems until today. In our living room we have a dimmer switch on one wall that controls our overhead light. On ...
0
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1answer
57 views

Adding another light switch to the bathroom

We are currently finishing out Master bedroom in the basement. It was left unfinished. The builders were supposed to add a light above the shower and didn't. I ran a 14-2 cable from the existing 2 ...
1
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2answers
95 views

Why three wires?

I have a carport light that takes two switches to operate. An inside switch essentially sends power to an outside switch. In other words, when the inside switch is in the "on" position, the outside ...
0
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0answers
109 views

Wiring a ceiling fan/light to two 3 way switches

Wiring a ceiling fan/light combo with TWO 3 way switches. The fan/light is pull string type. The First 3 way Switch box has ONE (line/power) 14-2 cable plus ground, and TWO 14-3 cables plus ground ...
1
vote
1answer
32 views

Well pump only works with on/off switch not control box

My well pump is setup with an on/off switch that works fine as well as a control box that should be turning it on when activated. Now it just makes a clicking sound and nothing happens. I am ...
0
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2answers
38 views

Convert 3 ways to 4 way Wiring

I am hoping someone can help me. I have a 3 way switch for lights on my stairs and a 3 way switch for lights in the hallway. The way they are currently wired is there is a 2 gang box at bottom of ...
0
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3answers
45 views

Can you add a separate switch (different light) to a 4 way switch?

Can I add a circuit (new Light separate from existing) to a 4-way switch set up? I used what I thought was hot from a switch and the new light only works when certain switches are activated. The 4-...
6
votes
3answers
630 views

THHN through EMT - then convert to Romex?

I want to wire outlets and light in my unfinished attic. There is a light switch at the bottom of the stairs, cable (I think THHN?) that runs through EMT through the wall and comes out upstairs and ...
1
vote
1answer
82 views

How should I reconnect this switch?

I suppose it's a three-way. The red light it's the only hot wire. It was like that when I came to the house. But the wire on top of the red it's going to other room switch and light. The one next to ...
1
vote
3answers
135 views

3-way light switch mysteriously works, then stops working, then starts working again

I have a three-way light switch that is exhibiting really odd behavior. Sometimes it works and sometimes it does not. For example, just now the following happened. Lights are off. I go to switch A ...
3
votes
2answers
131 views

Is there a code-compliant way to label a wire where the conductors are not wired in the expected way?

This might be an X/Y problem, so if there is a better solution, I'm all ears. I have a 3-gang electrical box in my basement that is already overcrowded. It has The wire for the three-way light in the ...
1
vote
1answer
159 views

Lutron Caseta smart dimmer with Pico remote in 4-way switch set up

I would like to install a lutron caseta smart dimmer switch in a four way switch line that has two 4-way switches and the obvious two three-way switches. I want to put the dimmer in place of one of ...
1
vote
2answers
2k views

Looking for triple 3-way switch [closed]

Where can I find a triple, 3-way switch (toggle style) were all of the switches are 3-way. All triple switches I find only have one 3-way, the other two switches are single pole. Here’s why I need a ...
0
votes
3answers
46 views

Flickering CFL on 3-way switch

2 three way switches control two cfl fixtures (2x13W) in stairwell. 1 Switch and light at top and 1 of each at bottom. Power(black) into to Switch 1, then Red and Black to Switch 2, then black to ...
0
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2answers
63 views

3-way switch issue

I'm having an issue with a 3-way switch that I have not gotten around to fixing in many years. When I use switch A to turn on the light and then use switch B to try to turn it off, it flickers off and ...
2
votes
2answers
3k views

Can I install a photocell on a 3-way switched circuit?

I have a set of front exterior lights on my house which are controlled by two 3-way switches, one in the garage and one in the front entry way. I would like to install a photocell so that I can leave ...
0
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2answers
297 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 ...
1
vote
2answers
123 views

3-way switches don't have power

My house is 100 years old. Two bulbs (one on the first and one on the second floor) are controlled by two switches (one on the first floor and one on the second). I checked the both switches. They ...
1
vote
1answer
47 views

Hallway Smart Switch help

I’d like to change my hallway switches to Lutron Caseta Smart Dimmers but I’m not sure how to proceed. I’ll preface with I’ve done pretty basic electrical (swapping to GFCI outlets, changing junction ...
0
votes
1answer
48 views

Adding lights to a 3-way switched circuit

I currently have a circuit that goes like this: Panel -> 3-Way switch -> 3-Way switch -> light I have the wiring run through 2 additional boxes between the switches and I'd like to add ...
1
vote
3answers
4k views

Connecting a Leviton 3-Way Dimmer Switch to new 3-Way Circuit

I have wired a new 3-way circuit in a bunk-house exactly as shown in the following diagram, with wire types and colors matching those in the diagram 100%: I have a 2-pack of Leviton 6674 Dimmers, ...
5
votes
3answers
5k views

3-way switches no longer serving their purpose

I apologise if there is an answer to my question in one of the other multiple 3 way switch questions, but if there is I couldn't find it. I just bought an old house, built in 1967. I'm replacing the ...
1
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3answers
106 views

How do I fix this 3 way switch mess?

I just moved into my house and replacing switches and receptacles when I come across a 3 way circuit not working correctly. I pulled the 2 switches to find someone had replaced one with a single pole ...