8 votes

Is there a way to run my furnace fan intermittently without heating the house more?

I don't think most (any?) of the "dumb" programmable thermostats allow what you want, but I know (because I have one) that the ecobee3 has a setting where you can ask it to run the fan X ...
Huesmann's user avatar
  • 3,090
7 votes
Accepted

How to Fix my DIY Smart Switch Install

It looks to me like cable 5 is a switch loop. White should be the always-hot wire and black should be the switched-hot wire. There is no neutral. The popular response to that is to steal neutral ...
Harper - Reinstate Monica's user avatar
6 votes
Accepted

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

The easiest solution is to use a smart wired switch with a wireless remote. For example, with Lutron Caseta, you can use a Pico remote to control. Since it is battery powered/wireless, you can mount ...
manassehkatz-Moving 2 Codidact's user avatar
5 votes

How to Fix my DIY Smart Switch Install

Only neutrals on the same breaker should be connected together. All grounds no matter the breaker can be together. If circuit 3 is on a different breaker than circuit 5, then the neutral #3 should not ...
crip659's user avatar
  • 23.7k
4 votes
Accepted

2-pole wifi circuit breaker?

This is clearly an X-Y problem. You are trying to use a circuit breaker as a switch (which is in and of itself OK as most branch circuit breakers are switch-rated) and then throw remote access on top. ...
manassehkatz-Moving 2 Codidact's user avatar
3 votes
Accepted

Confusing light switch - two blacks and a red, but with white and green wires?

Appears to be a bog-standard three way switch. Meaning another switch also controls the same one light. Depending which "end" of the 3-way you are at, the black on the black screw and the ...
Ecnerwal's user avatar
  • 210k
3 votes
Accepted

Is 3-way switching circuitry compatible with smart ceiling fans?

Never say never, but: FWIW, I have never seen a 3-way smart fan switch or smart fan with 3-way switches. Yes, you have another option: use a smart fan controller like "Universal Smart Wi-Fi 4-...
MadMonty's user avatar
  • 749
3 votes

Best way to control many lights with a single switch

Yes, C Putting in smart bulbs or cans and retaining the existing switches will have the (big IMO) disadvantage that when certain wall switches are turned off, their respective lights will go off line ...
jay613's user avatar
  • 36.8k
3 votes

Replacing an existing 2-wire doorbell transformer with a 3-wire transformer

The new transformer shows a black, white, and a green wire. The colour green(or bare) is only allowed to be used for ground. Having a green wire is only there for your safety. It does not change how ...
crip659's user avatar
  • 23.7k
2 votes
Accepted

Robust Home Automation without reliable internet

You can set up Home Assistant with Zigbee or Z-wave for a fully offline setup that can still be integrated for access over the Internet. Downside, you will either have to go through the headache of ...
KMJ's user avatar
  • 10.9k
2 votes
Accepted

Ecobee SmartThermostat - Blue connected to W at furnace, what to do?

I ended up removing the resistor (or whatever), connected my blue wire from the thermostat to the C/blue bundle and left the white from the thermostat hooked into the white/W. At the thermostat I ...
Steve W's user avatar
  • 41
2 votes

Shelly2 Dimmer in 3-way 4-way circuit

No-neutral smart switches that are not battery-powered typically don't work well with LED lights, since they power themselves and stay connected to the network by leaking current through the switch. ...
Fredric Shope's user avatar
2 votes
Accepted

Fire / smoke detectors with email notifications

Look toward hobbyist-install security systems. These usually at least have a test mode in which notifications go only to you rather than the central office, and some which integrate with home ...
keshlam's user avatar
  • 28.5k
2 votes

Is there a way to run my furnace fan intermittently without heating the house more?

Nest (which I have) lets you run on a schedule or as a one-time operation. Either way, you are limited to 15-minute increments. So, no 5 minute option (I'd use this too, if it existed). Fan control ...
Tom Hundt's user avatar
  • 311
2 votes
Accepted

Installing a thermostat with 3 wires only (red/R, white/W, and black/G)

If you have only three wires for a heat-only system, you have three options that don't involve running new wires. These are all described in the ecobee documentation. Use your wires for R, W, and C. ...
KMJ's user avatar
  • 10.9k
2 votes
Accepted

Can I connect two Line (hot) wires in a single phase circuit safely?

Here's the part you're missing. The Sonoff device must be wired in series with the load just like a regular switch. And just like any other switch, if you bridge the pole with the same line hot wire,...
Robert Chapin's user avatar
1 vote

Is 3-way switching circuitry compatible with smart ceiling fans?

You say "3-way" but what you actually want is control of the fan/light in two places. You're not married to the idea of using dumb, plain "3-way" switches in the second location. ...
Harper - Reinstate Monica's user avatar
1 vote

Can I connect two Line (hot) wires in a single phase circuit safely?

That won’t work. You’ve just shorted out the switch. It’d work exactly the same as if the switch weren’t there at all. In fact, the switch won’t even get power to function. There’s basically no way to ...
DoxyLover's user avatar
  • 12.6k
1 vote

Installing smart thermostat but can’t fish new wire

If your problem is the most common one, lack of a C wire, the easiest alternative is to use a C-wire adapter. You install a pair of boxes, one at the furnace and one at the thermostat, which ...
jay613's user avatar
  • 36.8k
1 vote
Accepted

Wiring color / gauge for pigtails at the junction box

In absence of any other pictures or information, in the USA, neutrals are typically white insulated, and grounds must be either bare or green. 14ga minimum for 15A, but could always be larger (i.e. ...
Milwrdfan's user avatar
  • 4,329
1 vote

Where to connect a common wire to a Burnham alpine Furnace

As it stands right now you are not equipped to have a C wire. It is missing. Or you are not telling us all the wires that come out at the thermostat. Using multimeter find out which 2 wires give you ...
Traveler's user avatar
  • 17k
1 vote
Accepted

Replacing an existing 2-wire doorbell transformer with a 3-wire transformer

A way to test the transformer to see if it is the doorbell transformer rather than the HVAC transformer (before disconnecting anything) is to clip or touch the leads of a multimeter (in a/c voltage ...
Jim Stewart's user avatar
  • 21.6k
1 vote

Best way to control many lights with a single switch

In general, I agree with jay613's answer of C - Smart switches. Definitely better than A or B. But another possibility is to investigate the wiring and see if things can be combined. For example, if ...
manassehkatz-Moving 2 Codidact's user avatar
1 vote

What features or terminology do I need to look for in selecting a suitable climate control solution

Most heating control systems can control a heat source such as a boiler for starting times and duration, which in your case can be the heat pump. Then you need to control 4 zones, the real questions ...
Solar Mike's user avatar
  • 27.3k
1 vote

2-pole wifi circuit breaker?

I do not believe this exists, with good reason. Think how dangerous it would be for someone to be working on that circuit and have it be remotely turned on.
RMDman's user avatar
  • 27k
1 vote

No voltage on old thermostat wiring

I think I've figured it out. Like so many other posts. I had to open the box upstream from the downflow coils. That revealed the control board: I'm pretty sure the brown wire in the pic is connected ...
bonhoffer's user avatar
  • 349

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