How To Remove Old Honeywell Thermostat from Wall

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How do you remove an old Honeywell thermostat from the wall? If you aren’t the person to from attachments easy, there comes a time you will have to replace your old thermostat. The thermostat might have become defective or isn’t efficient anymore.

But do you know how to remove old Honeywell thermostat from wall? What steps do you need to follow? What types of tools do you need? If you don’t know all that, then you are at the right place. We have come up with a guide to removing an old thermostat from the wall to make it easier for you. Read on and see how easy it is.

Table of Contents

Why do You Need to Remove Your Old Honeywell Thermostat?

You might already know one of the main reasons you have to change your Honeywell thermostat from the title description. The most obvious reason is that it might be too old. Old thermostats, no matter how good they were in the past, might not cut it anymore. That’s why it’s always a good idea to remove them. You could also have recently decided to upgrade your HVAC system by getting another thermostat. In that case, you might need to uninstall the old one and have the new one up. The HVAC system is usually in one place, and you can’t install a new one with the old one still up.

Another primary reason you would need to change the thermostat is not giving you the best performance. While it’s possible to have attachments to your old Honeywell thermostat, logic dictates that you change it whenever you see issues.

With that out of the way, let’s have a look at how you can do that.

Removing an Old Honeywell Thermostat from Wall

What Will You Need?

A Screwdriver
Your Phone
Painters Tape

Removing a Honeywell thermostat is relatively easy to pull off. But before you start, there are some things you need to have done for your safety. First, you need to check the basic wiring of your entire HVAC system. They need to be in the correct configuration to ensure they don’t cause an accident as you change.

The wires are usually low voltage and shouldn’t worry you. The wires go to different parts of the HVAC system and enable it to run. In the HVAC industry, wiring systems follow the below color code.

Blue: Common (“C” wire)

Red (C): 24 VAC transformer for the cooling system.
Yellow: The Compressor.
Red (H): heating system transformer (24 VAC).

Orange: Heat pump (if you have one).
White: The Heating system.
Green: The Fan.

Step 1

Switch off the power connection to the HVAC system. That will need you to check the mains power suppler the circuit breaker and switch them off. That will protect you from any electrical accidents once you start.

Step 2

Check if your thermostat came with a glass vial. If the glass vial is present, you need to be careful not to break it. That’s because it could pollute the surrounding area. You have to dispose of it as carefully as possible.

Step 3

Now remove the thermostat’s cover. The cover is a lid on the top parts of the vacuum that covers the wires from being out naked. It is easy to remove by simply pulling it off the thermostat. Ensure you do that firmly enough, though.

If you are lucky, your thermostat might have a latch that you press to remove the cover. That should give you access to the thermostat’s wiring. But at times, there might be a plate covering the wires. In that case, use a screwdriver to remove it.

Step 4

For any electrical system, leave alone HVAC systems, the wiring is integral to its proper functioning. That means you need to be as careful as possible with the wires. If you have a phone, it would be wise to take a photo of the wiring before disconnecting it.

Painter’s tape will come in handy here. Use the tape to identify the wires with the corresponding terminals. That will help you later on, knowing which wires go where.

Step 5

Now it’s time to remove the bracket and the wires. Proceed with caution at this step as you disconnect the wires from other terminals. The screwdriver will help you to remove the wires since it screws that have them in place.

Step 6

Again, use the screwdriver to remove the wall plate. If there was any damage to the walls, make repairs by patching up a few holes or painting discolored places. You will now be ready to install the new thermostat since everything else will be on the ground.

That wasn’t too complicated, was it?

Installing the New Thermostat

Installing the new thermostat will be a straightforward affair since you labeled the wires with their terminals. All you’ll have to do is attach the corresponding thermostat wires with those on the wall.

That will involve you attaching the new thermostat’s base first before dealing with the wiring. After mounting the new thermostat, lock up everything and ensure everything is securely in place. You can now restore the power and turn on the circuit breaker.

Important Points to Remember

Always have the power off before starting anything. That will protect you from any electrical shocks when removing the old thermostats and installing the new ones.
If you feel you can’t, do it, then call in a specialist to help you. Most times, there is a helping number on the thermostat.

We’ve listed a few smart thermostats for you. We spend hours studying the best models so you can make an informed decision. But We always recommend consulting with professionals before making a purchase.

Honeywell Wi-Fi Smart Color Thermostat

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Honeywell T9 WiFi Smart Thermostat Alexa and Google Assist

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Honeywell Wi-Fi Touchscreen Smart Thermostat

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Honeywell RTH8560D 7 Day Programmable Touchscreen Thermostat

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For more information on the best thermostats, you can visit 5 Best Thermostat Home Assistant.

Frequently Asked Questions

Can I remove my old thermostat and install a new one myself?

Of course, you can. As you might have seen from the steps in, we have outlined it as an easy thing to do. You only need to ensure you do it as carefully as possible.

Is installing a new thermostat that high?

That will depend on your budget. If you use a professional to help you install it, it shouldn’t cost you more than $200. That includes buying the thermostat and the cost of the installation.

Let’s Wrap Up

If you dint know How to remove the old Honeywell thermostat from the wall, we hope you are now better equipped to do that. Follow the easy steps we have laid out to replace your thermostat and have your home warm again.

As an Amazon Associate, We may receive commissions for purchases made through links in this post at no additional cost to you.

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