5 Easy Steps for Manually Resetting Your Thermostat

5 Easy Steps for Manually Resetting Your Thermostat
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The AC Therapist

5 Easy Steps for Manually Resetting Your Thermostat

Manually resetting a thermostat can be a quick and easy fix for a variety of HVAC issues. Whether you’re experiencing unexpected temperature changes, strange noises, or your system simply won’t turn on, manually resetting your thermostat may be the solution.

In this blog, we’ll go through the steps for manually resetting a thermostat and what to do if the problem persists.

Manually resetting a thermostat

Step 1: Locate the circuit breaker

The first step in manually resetting your thermostat is to locate the circuit breaker that controls the power to your HVAC system. The circuit breaker is typically located in a service panel or electrical box, usually found in a utility room, garage, or basement. It’s important to note that the circuit breaker can have different labels, such as “HVAC” or “AC”, that will help you to identify it. Once you’ve located the circuit breaker, make sure to turn off the power to the HVAC system by flipping the switch to the “off” position. This is an important step to ensure your safety while working on the thermostat.

Step 2: Remove the thermostat cover

Once you have located the circuit breaker and turned off the power to the HVAC system, the next step is to remove the cover of your thermostat. This is a crucial step as it will allow you to access the internal components of the thermostat, and make the necessary adjustments.

Removing the cover can typically be done by gently pressing down on the cover and sliding it off. It is important to be careful during this step and not to damage any wires or components while removing the cover. Some thermostats may have a locking mechanism or screw that needs to be released before the cover can be removed. In such cases, make sure to check the manufacturer’s instructions for guidance on how to properly remove the cover.

It’s also recommended to take a photo of the wiring or make note of the current wiring configuration before proceeding to make any adjustments, this way you can easily match the wires back to the right terminals after resetting the thermostat.

Additionally, it’s important to make sure that you have the appropriate tools on hand to complete the task, such as a screwdriver or wire cutters, depending on the type of thermostat you have.


Step 3: Locate the reset button

Once the cover is removed, you should be able to locate the reset button. This button is typically located on the control board and may be labeled as “reset” or “program.” Press and hold the button for a few seconds to manually reset the thermostat.

It’s important to make sure all wires and components are securely in place before reinstalling the cover, as any loose connections can affect the proper functioning of the thermostat. Additionally, make sure the cover is properly aligned and securely fastened, to prevent drafts or dust from entering the thermostat, which can cause damage over time.

Step 4: Reinstall the cover

After the thermostat has been reset, reinstall the cover by sliding it back into place and gently pressing down to secure it.

Once the cover has been reinstalled, it’s important to test the thermostat to ensure that it’s working properly. To do this, turn the power back on to the HVAC system at the circuit breaker, and set the thermostat to the desired temperature. Give the system a few minutes to kick on and start heating or cooling the space.

If the thermostat is working properly, you should see the temperature in the room start to change. If the thermostat is still not working properly, or if you encounter any other issues during the reset process, it’s best to contact a professional HVAC technician for further assistance. They will be able to diagnose and fix any problems that may be preventing your thermostat from working properly.

It’s also important to remember that regular maintenance and cleaning of your thermostat can help prevent issues from arising in the first place. This includes cleaning the thermostat’s cover and sensors, checking the batteries, and making sure that the thermostat is in a location that is not affected by drafts or direct sunlight.


Step 5: Turn the power back on

The final step is to turn the power back on to the HVAC system by flipping the circuit breaker to the “on” position. Your thermostat should now be reset and ready to use.

Once you’ve secured the thermostat cover back in place, it’s time to turn the power back on to your HVAC system. This can be done by flipping the circuit breaker that you located earlier back to the “on” position. Be sure to double check that all the wiring is properly connected and that the thermostat is properly secured on the wall before turning the power back on.

After turning the power back on, you may want to wait a few minutes for the thermostat to power up and initialize before attempting to use it. This will ensure that the thermostat has fully reset and is ready for use. Once the thermostat is on, you can check the display to confirm that the thermostat is working properly.

It is important to note that if the thermostat is still not working properly after manually resetting it, it may be a sign of a more serious issue that requires professional assistance. In this case, it is best to contact a licensed HVAC technician or your thermostat manufacturer for further troubleshooting and repair.


In conclusion, manually resetting a thermostat is a simple process that can be done by anyone. By following these steps, you can troubleshoot and resolve common thermostat issues and get your HVAC system back to working properly. However, if the problem persists, it may be best to call in a professional to ensure that the issue is properly addressed and that your HVAC system is running safely and efficiently.

If these steps do not resolve the issue, it may be best to call in a professional HVAC technician to diagnose and fix the problem. Some common issues that may require professional attention include a faulty thermostat, a broken control board, or a malfunctioning HVAC system. A professional can also help you troubleshoot other possible causes of HVAC problems, such as a clogged air filter or a dirty condenser coil.


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We can also help you with any other issues, such as:

  • New Thermostat installation
  • A/C is not cooling properly -When the A/C turns on, it doesn’t cool down the house -The compressor cycles on and off too often
  • The air conditioner is leaking water. There’s a burning smell when the air conditioner turns on.


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