How do you connect a Wi-Fi thermostat without C wire?

Quote from the video:
Quote from Youtube video: Turn your power to the thermostat off at the circuit breaker. Once you've installed the backplate of your new thermostat onto the wall unwrap the wire if it's wrapped around your wire bundle.

What can I use instead of C wire?





If there is no hidden C-wire, you can use a G-wire instead. However, you will not be able to use your fan independently when the heating or cooling isn’t running. Also, many HVAC systems are incompatible with this solution, including: HVAC systems using electric heat.

How do you hook up a 5 wire?

Quote from the video:
Quote from Youtube video: Start off by taking a picture of the wiring already in place on your old thermostats wall plate for future reference. Next unscrew each wire from its terminal. Pull out the wires.

Can thermostat work without C wire?

No C Wire—No Problem



In fact, some of the most advanced and popular smart thermostats like the Google Nest Learning Thermostat are among those that can be installed without a C wire. Now it’s easier than ever to keep an eye on your spending and control your energy usage using smart technology.

Why does my thermostat have 5 wires?

5 wire thermostat is basically a 4 wire thermostat with a “C” or “Common” wire. The newer digital thermostats for HVAC devices all require a 24V C wire connection to function. 5 wire thermostats are the most versatile thermostat; they control anything from smart air conditioners, heat pumps, furnaces, and so on.

How do you make a C wire for a thermostat?





Quote from the video:
Quote from Youtube video: Run actual thermostat wire in the all and connect. It to the existing thermostat wire if you've got an extra wire or if you want to fish some new ones in the wall. Not a big deal there.

Is RC and C wire the same?

The C and Rc wires are not the same. To install this thermostat you should follow the exact same wiring of the previous thermostat.

Can I connect G wire to C?

Quote from the video:
Quote from Youtube video: Move it over to your C as in Charlie terminal. We're going to make a jumper of a short piece of wire. And jumper between the Y and the G. And then once we hook that G up to the C.

Can I install a Wi-Fi thermostat with only 2 wires?

High voltage systems aren’t compatible with 2 wire wifi thermostats but, most typical HVAC systems are low voltage systems and are compatible with 2 wire thermostats.

Is C wire required for Nest?



With a Nest Thermostat E or Nest Learning Thermostat, you’ll need to install a C wire if the thermostat has power issues or its battery often drains.

What color is the C wire?

Blue wires

Blue wires are also called “C” wires because they are the Common wire. C wires are necessary for any “smart” thermostat that needs to be connected to a power source 24/7, regardless of your heat pump type.

Does Sensi Wi-Fi need C wire?



The Sensi Smart Thermostat also works on most combined heating and cooling systems without a c-wire, however, will require a c-wire for Apple HomeKit functionality. The Sensi Touch Smart Thermostat always requires a c-wire.

What is the orange wire on a thermostat?

The Orange Wire



The orange thermostat wire links to your heat pump, if you have one. It terminates in your outdoor condenser for reversing valve operation from hot to cold. The orange wire connects to terminal O on your thermostat. The orange wire only applies to homeowners with an air-source heat pump.

How many wires does a smart thermostat have?

In order to use an adapter kit, there must be a minimum of four wires currently present on your thermostat and HVAC system. The most popular adapter kit available is the Venstar Add-A-Wire (link to Amazon).

Where does blue wire go on thermostat?

Are Thermostat Wires Color Coded?

Color of the Wire Terminal Details
Blue B This is a common wire that is connected to the heat pump. Your HVAC system is going to need a common wire if it has to be connected to a power source 24/7.

How do you wire a 5 wire thermostat?



Quote from the video:
Quote from Youtube video: But there is a way to make a 5-line of thermostat. Work with only four wires let me show you how just as before you connect the YW an hour from your thermostat to your HVAC.

What if I have a black and blue wire on thermostat?

This the Common Terminal, and usually, a blue or black wire is run to the transformer from this terminal to complete the circuit, and in some cases, provide power to the Thermostat. This terminal is found on thermostats designed to work with Heating Pumps and is used to power the defrost cycle on the heat pumps.

How do you know if you have C wire?

Quote from the video:
Quote from Youtube video: Likely there is gonna be a fifth wire tucked into the wall I'm thinking that's going to be our C wire most likely because as you can see we have a green a yellow a white in a red.

Is the C wire hot?

Typically, the wires that provide the power (often called the “hot” wires) are labeled Rc (cooling) and Rh (heating).

Where does the C wire connect on furnace?



On the C-Wire Adapter’s “Equipment” side, connect the wires to the corresponding terminals on the control board. Note: Be sure to remove the plastic tip on each wire before connecting to a terminal. Use the included mount and adhesive pad to attach the C-Wire Adapter inside your furnace or heating system.