Ecobee Installation Without C Wire

In my previous articles you must have heard about a very important wire known as C-wire. This wire plays a very important role in the working of a thermostat. The thing to be noticed is that this C-wire holds equal importance in every thermostat whether it is nest thermostat, Honeywell or Ecobee.

It is not a compulsion to install your thermostat with a C-wire. There could be a case where you have to perform Ecobee thermostat installation in the absence of a C-wire. This might sound weird but it is possible. If you are still wondering how this could be possible then I am here to guide you through the whole process.

Ecobee Installation Without C-wire Could Be Made Possible By Purchasing A C Wire Adapter And Connecting Its Wires To All The Relevant Terminals Of Your Thermostat.

Table of Contents

ECOBEE INSTALLATION WITHOUT C-WIRE:

There always exists a reason for the presence of a component in smart products. If we talk about thermostats, then their working merely depends on the presence of C-wire. If it is absent from the system then be ready to face some serious consequences.

DETAILED DISCUSSION ON C-WIRE:

Before jumping on to the actual procedure, it is essential to know the importance of C-wire in the thermostat. C-wire is basically a blue wire which is connected to the C-terminal of your thermostat, it is also known as a common wire. This wire is responsible to supply sufficient amount of power to the thermostat so internal battery could be charged easily.

Ecobee showing blank screen or not cooling might also be due to the absence of this wire. However, in the absence of Ecobee C-wire your thermostat will not get enough power supply and as a result your HVAC system might also get damaged in the process.

PROBLEMS TO FACE IN THE ABSENCE OF C-WIRE:

There are lots of problems which you could face if common wire is missing from your system. We have made a list of all those problems for you which are mentioned below.

Your thermostat will lose control over the system components
Temperature will reach extreme heights (either too hot or too cold) making the environment uncomfortable
Random activations and failures will be faced

Internal components can also get damaged in the process and they could be expensive to repair
Internal batteries could become faulty more frequently

ECOBEE WITHOUT C-WIRE – WHAT ELSE TO USE?

If you are installing your Ecobee thermostat without C-wire then of course you will be needing something else to use as its alternative. The best option to consider in this case scenario is a C-wire adapter.

Now the next question is, why should we use C-wire adapter? Well, if you compare the two then you will get to know the perks of using an adapter. First of all, the installation and all the related procedure of C-wire is pretty expensive as well as complicated. The wire has to be installed all the way from your furnace to the thermostat. If the distance between the two is large then Ecobee installation could prove to be really costly.

On the contrary, if you use a C-wire adapter then it will be much more convenient for you. The installation is pretty much straight forward and is also inexpensive.

ECOBEE THERMOSTAT INSTALLATION WITHOUT C-WIRE – USING C-WIRE ADAPTER:

In this section of the article we will tell you about the installation process for your thermostat using a C-wire adapter. There is no difference in the working of a C-wire and a C-wire adapter. Both of them ensure a constant power supply to the thermostat.

If you are thinking which adapter is the best one to use then I will definitely recommend you to purchase OhmKat C-wire adapter. There are multiple reasons for choosing this adapter as our final choice such as this wire adapter comes with a life time guarantee, it shows complete compatibility with Ecobee thermostat and lastly it is made in USA.

BRIEF DISCUSSION ON THE INSTALLATION PROCESS:

The OhmKat C-wire adapter comes with 2 wires. These 2 wires are connected to a transformer which is powered-up by a wall outlet. The provided wires are connected to the C and power terminal of your Ecobee thermostat. Along with this, the wire provided by the adapter is long enough that you don’t have to compromise on your thermostat location.

INSTALLATION PROCESS EXPLAINED IN DETAIL:

Follow the below mentioned steps in order to install Ecobee thermostat without a C-wire.

STEPS TO FOLLOW:

STEP 1 – Check the proper working of the wires of your thermostat

STEP 2 – Attach the back-plate of your Ecobee thermostat into the wall

STEP 3 – Connect the POWER wire (usually in red color) to the RC terminal

STEP 4 – Connect the FAN wire (usually in green color) to the G terminal

STEP 5 – Connect the OB wire (usually in orange or dark blue color) to the OB terminal

STEP 6 – Now connect the W1, W2 and Y1, Y2 wires to the respective terminals (depending on the model you are using)

STEP 7 – As the adapter has 2 wires, connect one wire to the C terminal while the other to RH terminal

STEP 8 – Now power up the transformer by plugging it into the wall outlet

STEP 9 – Now it is time to attach your Ecobee thermostat unit

STEP 10 – Fulfil the initial requirements and you will be good to go

After reading all the above mentioned steps you must have gotten the answer of how to install Ecobee thermostat without C-wire.

HOW TO INSTALL ECOBEE4 WITHOUT A C-WIRE?

To install Ecobee 4 without a C-wire, follow the below mentioned steps.

STEPS TO FOLLOW:

STEP 1 – Ensure the proper working of the thermostat wires

STEP 2 – Screw in the back-plate of your Ecobee4 thermostat

STEP 3 – Connect the POWER wire (red colored) to the RC terminal

STEP 4 – Connect the FAN wire (green colored) to the G terminal

STEP 5 – Connect the OB wire (orange or dark blue colored) to the OB terminal

STEP 6 – Now connect the W1 and W2 wires (wires found in system having additional heater systems) to the W1 and W2 terminals respectively

STEP 7 – Connect Y1 and Y2 wires (wires found in system having AC) to the Y1 and Y2 terminals respectively

STEP 8 – Take the adapter wires and connect one of them to the C terminal while the other one to the RH terminal of your thermostat

STEP 9 – Close the thermostat after plugging in the transformer into the wall outlet

STEP 10 – Turn on the thermostat and check if it is working properly or not

INSTALLING ECOBEE3 LITE WITHOUT A C-WIRE:

To install Ecobee3 Lite without C-wire, follow the below mentioned steps.

STEPS TO FOLLOW:

STEP 1 – Ensure the proper working of the thermostat wires

STEP 2 – Screw in the back-plate of your Ecobee3 lite thermostat into the wall

STEP 3 – Connect the POWER wire (red colored) to the RC terminal

STEP 4 – Connect the FAN wire (green colored) to the G terminal

STEP 5 – Connect the OB wire (orange or dark blue colored) to the OB terminal

STEP 6 – Now connect the W1 and W2 wires (white and brown colored) to the W1 and W2 terminals respectively

STEP 7 – Connect Y1 and Y2 wires (yellow colored) to the Y1 and Y2 terminals respectively

STEP 8 – Take the adapter wires and connect one of them to the C terminal while the other one to the RH terminal of your thermostat

STEP 9 – Close the thermostat after plugging in the transformer into the wall outlet

STEP 10 – Turn on the thermostat and check if it is working properly or not

HOW TO INSTALL ECOBEE3 WITHOUT A C-WIRE?

To install Ecobee3 without a C-wire, follow the below mentioned steps.

STEPS TO FOLLOW:

STEP 1 – Ensure the proper working of the thermostat wires

STEP 2 – Screw in the back-plate of your Ecobee3 thermostat into the wall