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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11 views

Light between 3 way switches and installation of electronic timer switch

an amateur here looking for some advise on installing an Ascend STW700W smart timer in to an existing 3 way switch. I've done this a few times before, but this is the first time that I have come ...
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1answer
40 views

Need to separate 2 lights on the same 3way switch so each switch only controls 1 light

I've been researching this for about 8 months and finally learned enough to be able to ask my question properly. Background: Bought a house last summer that was built in 1966 but since renovated maybe ...
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49 views

4 way switch circuit troubleshooting

I have a hallway light in a 4 way circuit configuration. The problem I have is that when the 4 way is in one position all three switches work correctly. In the other position one of the 3 way switches ...
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1answer
186 views

Does this 3-Way Wiring Violate 300.3(b)?

I see NEC 300.3(b) coming up quite a lot in discussions about neutral wires and smart switches. I'm looking at a 3-way configuration I have now with analog switches and how I can properly modify it to ...
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30 views

Decoupling 3 way switch

I currently have a hallway with two light fixtures, both of which are controlled by the 3 same light switches in different spots in the house. I want to replace one of the light fixtures with a small ...
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29 views

Wiring a 3-way switch

I have a hallway light that was originally wired to 2 switches, with 3 wires at each switch. But a previous owner replaced one of the switches with a 2-way dimmer switch and capped the third wire. Now ...
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1answer
17 views

switch for light also turns on a circulation pump - looks like a 4-way switch - has failed

there are three bathrooms and one kitchen Light switch (total of 4 switches) that turn on the lights, and also start a Circulation pump for the hot water system. the intent is that the hot water ...
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1answer
51 views

Will this 3 way switch wiring plan work?

I am in a situation that is Hot - Switch - Fixture - Fixture - Switch. The Hot is supplied with 14/2, and the remainder romex is 14/3. Both switches will be 3way. I found this drawinng on the ...
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2answers
85 views

3-Way Wiring Help

I have a trio of: (2) three-way switches + (1) four-way switch connected to a trio of hall lights (controlled as a group), and am trying to replace one switch with a smart switch and still maintain ...
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41 views

Adding an additional fixture to an existing three way switch

Box one. I'm doing a remodel and want to add a fixture to an existing three way, it would be a ton of work to reach the existing fixture or the three way switch that has the power supply in it's box. ...
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107 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 ...
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2answers
119 views

Multiple 3 Way Switch wiring

I have a box that has 2 3-way switches. One goes to control the basement lights. The other one controls a light outside the basement. There is also a 3-way switch outside the basement that ...
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1answer
45 views

Multiway switches on 24V or 230V?

I will be redoing my room lights for 24 VDC LEDs, with multiway switches. I'm located in Poland. Should I put the switches on the 24V side or the 230V side of the circuit? What are the points to ...
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1answer
57 views

3-way switches with receptacles

I have two three-way switches controlling the bottom outlets in my living room receptacles. I recently replaced one with a Lutron Caseta and it worked great, no issues. More recently, I went to swap ...
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1answer
47 views

Ground wire seems to pass through light switch

I am trying to install a Kasa smart switch and ran into what looks like a ground wire that just passes through the switch(see image below). This switch is one of two that control a single bank of ...
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1answer
62 views

Converting existing 3-way switches to smart switches

I have an existing 3-way switch setup that I'm trying to convert to "smart" switches and I'm feeling "not smart" after mapping out where I think the wires are going. Unfortunately ...
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1answer
45 views

Three way switch with dimmer control

First, disclaimer: Not an electrician. I'm doing a bit of home wiring, and wanted to make sure my setup for a 3 way switch w/ dimmers works. If anyone sees problems, has complaints, knows a more ...
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1answer
40 views

Pair of 3-way switches, when one is on, the other won't toggle it

I have a pair of 3-way switches. I've wired them the same way as the other 4 in the same box (as far as I can tell), but they're not working as expected. I've tried re-wiring them each lots of various ...
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1answer
70 views

Replacing Vintage Carlon Thyrocon Rotary Dimmer with Lutron Skylark S603-PGH Sliding Dimmer

Happy new year! I'm trying to replace an old rotary dimmer with a newer slider/switch and could really use your help. I searched and searched and couldn't really find someone with the same wiring ...
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1answer
34 views

3-Way Light Switch Replacement Question

I have a 3-way light switch that I am trying to replace upstairs. The light switch controls a hall light, and there are 2 other light switches that control the same light. I've already replaced the ...
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28 views

How to correctly wire two lamps to 2 way switch

I messed up! I was replacing two light fittings that are both controlled from 2 two way switches. I did not make a note of the existing connections before I removed the old fittings (noob mistake I ...
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2answers
86 views

Can I add a single pole switch to an existing thee way switch with same power source

Hello and apologies for this newbie question. I have a three way switch that controls recessed lights in an extension through a wall, one three way switch inside (basement) one three way switch ...
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263 views

What light switch combination do I need?

Help! I'm replacing some light switches for my kitchen light and I can't seem to get the circuit to work properly with the new switches. I assumed I just needed to buy two 3-way switches, but I can ...
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65 views

Is it possible to add a second switch to a light, without unearthing the wires to the existing switch [duplicate]

I have a hall light with the only switch by the front door. The light fixture is ~3 meter from the door. At the foot of the hall stair, about 2 meters away from the door in the other direction, is an ...
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1answer
63 views

How do I combine two 3-way switch circuits into one?

I am attempting to rewire two 3-way switch circuits into just one 3-way circuit by eliminating the 2 of the switches. Is this possible? My electrical goes: Power in: 1) switch ---> light ----> ...
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113 views

Replacing old 4-way switch

I have a old 4-way switch whose toggle broke and now needs replacing (see attached). My problem is I can't figure out the wire mapping. All 4 wires are yellow. I guess the ones on top are for 1 3-...
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1answer
353 views

Wiring issue with 3-way switches and FEIT smart dimmer and T1/T2 lines cross-talk

I am trying to install a FEIT Smart Dimmer switch with a 3-way switch. It is an interesting installation where the 3-way switch (works as a single pole in this installation) has 120V line. One of the ...
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1answer
45 views

Should a smart switch (that requires a neutral wire) cause my non-contact voltage tester to beep?

I installed 3 smart switches which are all on the same circuit in my house. I have never changed a light switch before, but I followed the directions very closely and watched a couple of Youtube ...
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1answer
45 views

Illuminated Light Switch Flickering / Pulsating

I have a 3-way light switch that I just replaced with a new illuminated one (glows when off). The light inside the switch is pulsating, like a heartbeat! I thought it was maybe a defective switch and ...
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2answers
149 views

Remove 3-way switch from a 4-way circuit?

From what I can tell, I basically have the same setup as this illustration. What I'd like to do is remove the 3-way switch on the right completely, leaving only the 3-way and 4-way switches on the ...
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1answer
71 views

How to handle existing electrical when adding a partition wall where two existing wall switches exist? [duplicate]

I'm adding a wall to turn a loft into a bedroom. The new framing will be right where an existing junction box is. Coming into the box from the top right are two 14/3 romex cables for a 3-way hallway ...
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32 views

Very strange behaviour in a 3 way light

Experiencing some very strange behaviour in a 3 way switch. The 3 way switch in question controls the hallway light in my upstairs. There is one switch at each end of the hall and a single LED 5” ...
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1answer
354 views

Wiring Leviton Smart 3-way Switch when Load Line Goes to the Fixture

I'm converting my home to use all Leviton smart dimmers (DH6HD-1BZ) and LED lights. All has gone well so far with neutral being accessible from most switches. However I've come across an old-school 3-...
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1answer
100 views

What wires do you splice in a 3-way switch?

I want to put two 3-way switches in the same box. I'm uncertain what splices I have to make, but I have an educated guess. (Diagram below) Here's my assumptions: The hots (black) from the 14-3 wire ...
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31 views

Cable size for 10 amp circuit

I’m UK based & I’m building a workshop where I want to be able to switch the dust extraction on or off from multiple locations. My intention is to use 2 2-way switches and 2 intermediate switches, ...
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1answer
94 views

Issue when adding a single pole switch next to a 3 way

Hoping for some help here. I have a 3 way dimmer switch running to a fan/light combo that I have jumped a single pole switch off of to power a new exterior light. There are two 3 way switches on the ...
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93 views

Upstairs and downstairs lights acting in unison(all on OR all off), how can I seperate them? (photos in link)

Link to photos here. To some frustration in our home, the current setup results in both lights acting in unison. If I want to turn on the ceiling fan/light in the foyer (1st floor), it defaults in ...
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28 views

Adding Lutron 3-way Motion Sensors to Both Switches

I purchased two Lutron 3-way switch motion sensor switches and I was surprised that the instructions only suggest using it for one switch. That doesn't make a lot of sense when the other switch is ...
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2answers
492 views

Is this 3 switch wiring arrangement allowed by code?

I have a hallway light fixture with three switches. When the circuit is off, a small voltage persists to the fixture causing LED and CFL bulbs to stop working prematurely. It is believed that the ...
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1answer
82 views

How to identify type of 3-way switch wiring

Like many others here, I am looking to replace a 3-way switch with a "smart switch" that requires neutral. As I inspect my wiring (home built in 2009) I note that I can't tell the difference ...
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1answer
96 views

Yet another 3-way smart switch question

Upstairs, I have a 2-gang with 2 different circuits. This question relates only to the left side of that box. It appears to have 4 drops, /3 /2 /2 /3, with the 2 left neutrals and 2 right neutrals ...
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2answers
393 views

How to identify which common terminal of the 3-way switch is connected the hot wire

The goal is identify hot and neutral wires in a 3-way switched line-array of lights, so that the array can be controlled by an Acuity SP20 Secondary Relay Pack (bottom device): Said line-array of ...
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1answer
59 views

4 Way Switching Wiring Diagram Nightmare

I am having trouble making my 4 way switch working in the home I just bought (quite an old one). As of now, I don't want to remove the light fixture as it quite big and it will be a big trouble... but ...
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1answer
20 views

How to wire a 3 way switch that was a light fan and now only a light. Way to many may wires in one box, not sure how to connect

I know how to wire a normal 3 way switch but this one has be baffled. One of the boxes is basic red/black/white but the other one has TWO red/black/white wires coming in and a black/white wire coming ...
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1answer
77 views

3-way GE Smart Switch installation

Above, brightened I have a ceiling fan/light that I am trying to convert to a smart switch. The light and fan are on separate switches in a 2 gang box with, what appears to be, 4 drops coming into ...
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1answer
42 views

Wiring two 3-day switches and a 4-way switch

My light fixture is ONLY working when I have the 4-way switch turned on in order for either 3-way switch to work. I have a 3-way switch down in the living room, a 4-way in the hallway, and a 3-way ...
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813 views

Can I Swap Ceiling Fan and Light Wires?

I bought a home with a ceiling fan that is wired in this manner: the light is on a single switch, and the fan is wired to two switches, on either sides of the room. It makes more sense to me to have ...
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166 views

What could have happened to the two traveler wires in previously working three way light?

The high-hat lights (retrofitted with LEDs) in kitchen stopped working. They were controlled by two three-way light switches, one a dimmer. I played around with different configurations of the ...
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1answer
505 views

Problem installing 3-way TP-Link HS210

I tried installing a 3-way TP-Link HS210 switch in my staircase, and I have a few questions: Both switches have: Black wire connected to a black screw (common wire?) White wire connected to a gold ...
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1answer
41 views

Switched outlet on when lights are off

I have a 3 way switch working the lights in my son’s room. The box has a single 14/3 cable running to the switch. Id like to put an outlet directly below it the would ideally be always on. I can't ...

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