How to Reset a Thermostat

Resetting a thermostat often only takes a few simple steps. Because it's so quick to do this yourself, it's worth attempting a thermostat reset before calling in the pros.

This guide breaks down how to reset a thermostat into four simple steps:

Before you go through the effort of resetting your thermostat, try some basic troubleshooting for common issues. If these quick fixes don't resolve the issue, it's time to learn how to reset your thermostat.

Verify that your thermostat is on. This is often as simple as checking the display and ensuring it's showing something. An older thermostat may have an analog switch that can be flipped between on and off. If the thermostat has no power, turn it on or change the batteries.

If that still doesn't work, you may need a replacement.

If you haven't set your thermostat to the correct setting, it's not going to run as expected. Confirm the mode and temperature are correct.

If you have a smart thermostat, you can do this from your app. If not, follow the instructions in your model's manual.

If your thermostat isn't turning on, confirm that it's receiving power at the circuit breaker. It should be labeled for your HVAC system. If the breaker is off, flip it on and see if that fixes the problem.

If your thermostat still doesn't work after trying the above, it's time to reset it. Start by shutting off the power at the breaker. This is necessary whenever handling electrical equipment to keep you safe if you have to remove the thermostat's faceplate later. Leave the power off until you're done tinkering with the thermostat or for at least 30 seconds.

If you know the make and model of your thermostat, you can look up how to reset it online or in the manual. However, most thermostats use a similar process, typically requiring you to hold down a reset button for a set amount of time. If yours has batteries, remove them and reinstall them backwards for at least 5 seconds to force it to reset.

If you have a smart thermostat, you can likely reset it from the menu on its screen or in its app.

If you have a Nest thermostat, you can reset it with the following steps:

1. Press the thermostat ring to open Quick View.
2. Select "Settings" and find "Reset."
3. Choose "Restart" or "Factory Reset."
4. Follow the rest of the prompts.

Factory resetting your thermostat erases any custom settings and schedules you've set. Copy down your settings before starting this process.

Once you're done resetting the thermostat, restore power at the breaker. You may need to reprogram all the thermostat settings, such as reconnecting it to Wi-Fi or setting your schedule. Test the settings to see if the HVAC system responds accordingly.

Sometimes, resetting your thermostat isn't enough to get it working again. A professional may be able to fix it, but you might need a replacement. Call for an evaluation if:

• Your display remains blank after resetting or doesn't turn on at all
• Your HVAC doesn't run even after resetting your thermostat and reinstalling your settings
• You suspect there's an issue with the wiring or the thermostat's installation
• You're not comfortable performing the reset yourself

The licensed techs at Jon Wayne can inspect, diagnose, and repair or replace your thermostat quickly and effectively. They can also determine whether the problem is with your thermostat or somewhere else in your HVAC system.