Questions tagged [smart-switch]

A smart switch includes electronic circuitry for remote control (beyond simple three-way switch wiring), smartphone or internet-based control, advanced timing capability or other features not found in traditional switches. Smart switches may require more (e.g., neutral) or fewer (e.g., signal 3-way with one wire instead of two) wires than traditional switches.

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4 votes
1 answer
74 views

So just how hard is it to pull new wiring into a typical switch loop?

I'd like to install more home automation. Unfortunately at least half my house is wired with old switch loops which have no neutral in the box. I also have ceiling fans with lights on switch-looped ...
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3 votes
2 answers
358 views

How to Fix my DIY Smart Switch Install

I've been installing smart switches and mostly seems like working fine. This one location though, seemed okay at first but after a power outage the breaker tripped unless I removed the right switch (...
1 vote
1 answer
35 views

Connect a smart switch to 2 gang light light switch

I've got an older house (1958) and I want to control my outside light with a smart switch on a dusk to dawn schedule. Light sensor bulbs are not working properly in our outdoor housing. That light ...
1 vote
1 answer
44 views

How can I connect this smart relay to my light switch?

I have a conventional rocker switch that controls the overhead light in a room. I intend to install a Sonoff Mini R2 smart relay behind it so I can use the switch in my smarthome setup. When I open ...
1 vote
0 answers
65 views

How can I install a smart switch that needs a neutral wire?

I have already replaced some existing dumb switches with smart ones However, I am having trouble understanding the connection in the switch box that controls a light fixture on my wall in the ...
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1 vote
1 answer
53 views

How do I hard wire cabinet lights to a smart switch

I removed my dumb switch and now I'm lost. I have over the counter lights that have have the plug cut off and hard wired into reg toggle switch. Can't remember if it was single pole or 3 way. Two ...
3 votes
2 answers
361 views

How do I replace this switch if the black wire is looped around the screw?

Behind a 2 gang wall plate, there are 2 single pole switches. I am trying to swap the left one out with a Kasa smart wi-fi light switch. The problem is, the black wire that connects to the bottom ...
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1 vote
2 answers
71 views

How can I test a smart switch requiring a neutral wire using an outlet?

I plan to mount floodlights on the back of my house. I have a Romex running through the wall between the mounting point and my electrical box. I want to test my floodlight before I go to the effort ...
0 votes
1 answer
69 views

Lutron Diva smart dimmer, won't work in a 5-way without accessory switches?

I have a 5-way switch circuit in my house, and after trying to install a Diva smart dimmer and reading Lutron's installation pages, it sounds like I can't have it work properly without one of Lutron's ...
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0 votes
1 answer
113 views

Changing a 3 gang Australian light switch to a 3 gang Smart switch

I am wanting to replace my old 3 gang switch with the latest 'smart' 3 gang switch, but I'm a little bit confused about how to wire it correctly. Obviously I know that I should employ a licensed ...
1 vote
2 answers
170 views

Alternative approach (without new wire) to splitting single switch into 2 switches controlling bathroom fan and light separately

We have this bathroom with just one switch on the wall. Both the wall light near the mirror and the ventilation fan in the ceiling are controlled by this single switch. I want to replace it with a 2-...
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2 votes
2 answers
92 views

Creating 3 Way switch with existing wiring and smart switch

I am doing the wiring in the basement, and have messed up. I did not run the necessary cabling to do the 3 way switch the traditional way. I have 14/2 cable that comes from the breaker to a 3 way ...
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0 votes
0 answers
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3 Way smart dimmer switch install with switched Load wire in junction box 1 and live wire at junction box 2

I want to install wifi 3-way smart dimmer switches for a chandelier and in junction box 1 it looks like they ran the power to the light and back down to Junction box 1 with 14/2 Romex. Then they ran ...
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3 votes
1 answer
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Need Help Using a TP-Link HS210 Kit to Replace GE/Jasco Bluetooth Switch and Add-On

My house has an old GE/Jasco Bluetooth switch setup in a 3-way configuration. That uses 2 different kinds of switches. One is referred to as the primary and one is called an add-on. They have ...
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2 votes
0 answers
99 views

Using neutral wire from outlet for smart switch

I have a 2 gang switch/outlet located in my garage and looking to replace both the outlet with an outlet that includes USB ports and the switch with a smart switch that requires neutral. The switch ...
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3 votes
1 answer
154 views

Installing Kasa smart dimmer 3 way with only 4 wires?

I have some lights controllable by two toggle switches on opposite sides of the room. Im located in the US in an older house, Im trying to install a Kasa Smart Dimmable 3-way Switch (KS230). However ...
0 votes
1 answer
78 views

Shelly2 Dimmer in 3-way 4-way circuit [closed]

My first posting here. I am trying to add a Shelley2 dimmer in a 3-way or a 4-way switch to add dimming and smart switch capability because I do not have a neutral wire inside the box so I chose ...
1 vote
2 answers
128 views

Neutral wire existence / problem?

I am replacing an old 3 way switch and am trying to figure out why my new smart switch is only turning on when the Line switch (the one that always has power) is in the up position. Does it have ...
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2 votes
2 answers
156 views

How do I wire a smart switch in electrical box that contains 4 neutral wires?

I'm trying to install a Lutron Claro smart switch in my bathroom which shares an electrical box with a Lutron diva smart dimmer. The dimmer doesn't require a neutral and works fine, but I can't figure ...
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0 votes
2 answers
68 views

Remove a water heater outlet, when removal spikes got broken during installation

I bought a "smart" controller for shower water heater. It used to be a normal on/off switch, and I bought a unit which connects to WiFi and I can control from an app. I called an "...
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0 votes
3 answers
132 views

Is it OK to have asymmetric house wiring?

I am converting a ceiling light with two switch locations (3-way switches) to a smart switch. Instead of a traveler 3-conductor cable going to the 'extra' switch, however, the load is in the middle of ...
0 votes
0 answers
84 views

New gfci outlet keeps tripping

I installed a new gfci outlet outside through my attic to power a roof de-icer cable. I tapped into a dedicated outlet for an air conditioner that runs to the floor below. Additionally in the attic I ...
9 votes
5 answers
2k views

Can a 14 AWG pigtail be used with a smart switch with a 20 amp breaker?

There are several previous questions that have been asked on this topic but they're all related to receptacles. I'm seeing that it is against code to use 14 AWG on a 20 amp circuit but when it comes ...
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1 vote
1 answer
55 views

What could cause an intermittent flash of LED with a newly installed smart dimmer?

I just installed a Lutron smart dimmer in place of an old dumb toggle switch that controls 4 dimmable LEDs. At max brightness, and with the brightness trimmed down a bit, I get an intermittent flicker ...
0 votes
1 answer
63 views

Smart Switch Wiring Neutral Wire

Would anyone know what is the best way to wire my 3 smart switches. 2 of them are single pole, 1 of them is a 4 way switch, there are only 2 bundles of neutral (see picture) how would I wire 3 ...
0 votes
2 answers
79 views

What could be the purpose of my single pole switch in this example?

I have an average understanding of electrical wiring so forgive me if my question might seem vague to you. I have two switches in my house, one is an Insteon SwitchLinc and the other one is a single ...
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0 votes
1 answer
130 views

Can you connect hot wire from a dimmer switch and daisy chain it to a regular switch

Can you connect hot wire from a dimmer switch and daisy chain it to a regular switch that controls a fan? and what happens when the dimmer is adjusted - does that mean less current is supplied to the ...
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1 vote
1 answer
76 views

Is it possible to have a smart switch control a wired switch

I have an older house, where running the new wires I need is challenging. I have a light that is on a switch at the top of the stairs, and I would like to add a switch at the bottom of the stairs also....
0 votes
2 answers
58 views

Swap 3 way input switch position

Can I change the slave switch in my 3 way circuit to the master/input switch? I'm trying to wire Wi-Fi switches and it has to be placed at the input box. That box is in a bad location. I'd like to ...
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1 vote
1 answer
46 views

Robust Home Automation without reliable internet [closed]

Currently I have a Aqara home hub with temperature sensors and TP Link Kasa smart plugs which I am using to control heating and lights. I currently use IFTTT, but it's not expressive enough for my ...
3 votes
3 answers
262 views

Why don't my lights dim after replacing a Lutron dimmer with a smart switch?

coming to the experts because I can't figure out what's going on and why. Goal Install a smart 3-way dimmer switch that allows 8 recessed LED lights to turn on/off and dim correctly. Background In my ...
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1 vote
0 answers
45 views

Any ideas for how to merge a stacked switch into a single Lutron Caseta?

Trying to install a single Lutron Caseta smart switch to combine the two parts of a stacked switch into one. Currently there are 2 lights, controlled separately by this stacked switch that I'd like to ...
3 votes
1 answer
97 views

Replacing two-gang manual switch to smart switch (AU)

I live in Australia and am trying replace a two-gang manual switch with a smart switch. I found the neutral (black wire with red circle) and when connecting the red wire (next to it) to the Live In of ...
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0 votes
0 answers
32 views

Removing a ceiling light and replacing its light switch with a smart switch

Title says it all: I have a ceiling light I want to remove completely, but utilize the location of the existing light switch for a smart switch to control a different set of lights with smart bulbs. I ...
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4 votes
3 answers
999 views

Rewiring a switch to bring in neutral

My master bedroom has a single light switch for the overhead fixture; however, it was built in the 50's and has end-line "power at the light" wiring like so: Image borrowed from this ...
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0 votes
1 answer
341 views

TP-Link HS200: 2 black, 1 red, toggling, and dim

Trying to install 4 HS200 in seperate rooms in a new 2017 construction. The light switch is a simple 1 pole with 1 red, 2 black, 1 ground, and 2 white with a nut inside the box. The hs200 toggle for ...
1 vote
1 answer
41 views

Smart switch acting weirdly

I’m trying to replace my bedroom light switch with a smart switch but it’s not working like I would expect. It’s a single pole, 4 wire switch wired to a split outlet. After installing the smart switch,...
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1 vote
1 answer
37 views

Replacing Drayton Boiler Control with something Home Assistant Compatible

So I've got this Drayton controller on my oil-based boiler. I've just pulled it off the wall to see what kind of connector it has, and its' got a weird connector with a whole bunch of pins on it, ...
0 votes
2 answers
177 views

Combining two circuits using Shelly relay

I would like to add a Shelly relay to control my existing three way circuit. One configuration for Shelly involves connecting a full-time hot wire to the device. I have seen people say "borrow ...
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1 vote
1 answer
225 views

Replacing Single Pole Switch with 3 Wires with a Smart Switch

Am replacing a single pole switch with a smart switch. The single pole I'm replacing has two wires on one terminal, a single on the other. The single wire is live, and the two wires are load. The ...
0 votes
0 answers
108 views

Installing smart switch, instructions say to add capacitor in parallel for optimal performance

I have bought this wireless two-way switch to add a second switch to an existing light. The instructions say: Connect L (brown or red) to terminal L of the module. Connect the cable from the bulb (...
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1 vote
1 answer
170 views

Is there a smart thermostat that can be set to turn on at a temperature, and heat to a moderately higher/lower temperature?

In the winter I'd like to only run the heat occasionally. Ideally I'd like to keep the temp somewhere between 68 degrees and 74 degrees (F). Ideally when the temperature drops to 67 the thermostat ...
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1 vote
1 answer
59 views

Switching out a strange 3 way switch

I am trying to replace what appears to be a 3 way switch with a Sonoff switch. I say appears because no matter what I do with the switches I can not figure out what they control. I checked all outlets ...
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3 votes
1 answer
255 views

add neutral wire to existing "bundle" for smart switch - need help understanding box

Attached is a markup picture to help identify wiring. This is in the USA. There are wires that come in from the bottom left of the box and from the top right of the box. I'm just a DIYer, and I'm ...
0 votes
1 answer
86 views

How to sync 2-way switches

Is it possible to sync state between 2-way switches? I would like to have ON as ON from wherever location I press the switch and OFF as OFF. Having switches in different orientation for ON state ...
1 vote
1 answer
159 views

How to attach multiple grounds for smart switches in crowded 3-gang switch box

I’ve recently upgraded a three-gang light switch box with three Kasa smart lights (a dimmer, three way light, and single pole switch). I’ve been able to successfully install all three and they’re ...
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1 vote
2 answers
41 views

Replace a single pole with programmable switch

Sorry for the repost, but the former q/a’s didn’t answer my particular question. I have a programmable switch, to replace a single pole switch at a three gang switch plate (the one on the right, in ...
1 vote
2 answers
51 views

New ceiling fan with light set that is also connected to a recessed light - can I use smart switch?

Hoping somebody can help out here. I'm in the process of changing my old ceiling fan to a new fan (a new ceiling fan with a lighting kit but does not have a remote). Currently, the wires coming from ...
0 votes
1 answer
87 views

Wiring a pair of switchs to always on

I have 2 switches (UK) that both turn on/off a single bulb. I'm trying to connect both switches so the power is always on. Each 1 gang switch has: Common on the top L1 / L2 on the bottom (separate) ...
0 votes
0 answers
45 views

Ceiling fan make thumping noise at the beginning

I just install a single pole Kasa smart switch (HS200), intended to use to turn on/off my ceiling fan. However, when I turn on the fan, it'd rocking back and forth and make loud thumping noise (like ...
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