7 Common Problems With Nest Thermostat And How To Troubleshoot? – 2024 Guide

In today’s market, the best-selling Thermostat is the Nest Thermostat. Nest Thermostat understands your preferred temperature and makes an energy-saving plan according to that.

Statista said that 33 million units of Smart Thermostat sold in the United States. After that, research was done by the New York Times and revealed that 33 million thermostats were mostly Nest Thermostats.

From this point, we know that the Nest Thermostat One of the Best is Thermostat. But despite being one of the best thermostats, Nest Thermostat has some problems that users have to face. In today’s article, we will talk about such common problems in the Nest Thermostat and how these Nest Thermostat’s common problems can troubleshoot.

List of common problems of nest thermostat and how to troubleshoot them

Below, we will tell you about common problems of the Nest Thermostat, and along with it, it has also been told how to troubleshoot these common Problems of Nest Thermostat.

1. The button of the Nest thermostat is not working

Source: engadget.com

This is one of the most known common problems of Nest Thermostat. The Nest Thermostat button does not work, or you can say the thermostat button does not get a click. Maybe your Thermostat’s wires are tangled, due to which this problem is happening in Thermostat.

The simple solution to this problem is that you have to solder the wires of the Thermostat and clip them together so that wires will get tangled with each other again. But before using this solution, you have to take care of one thing: you have to turn off your Thermostat.

2. Low Battery Problem

Source: mobilesyrup.com

The battery of the Nest Thermostat will drain fast, Or You Can Say Low Battery Problem as well. Due to the low battery problem, you will also have trouble connecting Thermostat to Wi-Fi, and even sometimes, the Thermostat will stop working because of the low battery problem.

If your Thermostat’s voltage level is more than 20 MA, then your Thermostat does not have a low battery problem, but if your Thermostat’s voltage is less than 20 MA, then your Thermostat has a battery problem.

And if you want to fix this problem, then you can adopt three ways.

  • Charge your Thermostat through a USB cable.
  • You can take out the G wire and, after that, put it in the C terminal.
  • You can use a 24v standard wire charger.

3. The Thermostat gets too cold or too hot

Nest Thermostat also has a problem: sometimes Thermostat gets very cold and sometimes very hot. This problem occurs because Thermostat’s C wire has an issue.

Although this problem is not such a big problem because Thermostat has a lithium-ion battery, due to which it can recharge from any other charger.

So as the Thermostat has a lithium-ion battery, the Thermostat can work without the C wire. So if your Thermostat is getting too cold or too hot, take out the C wire from the Thermostat to fix this problem.

4. Thermostat Disconnects From Wi-Fi Frequently

Source: termosistemtehnika.com

Because its battery can no longer sustain its smart capabilities, your Nest Thermostat is likely disconnecting from Wi-Fi. It might be for one of the following reasons if your smartphone is frequently seeking to reconnect to your Wi-Fi network:

  • Your Wi-Fi isn’t functioning correctly. Use other devices (smartphone) to see wheater your Wi-Fi is working correctly or not. If your Wi-Fi on other devices isn’t working correctly, it’s a hint that tells you why your Thermostat isn’t working correctly. You can restart your Wi-Fi router to determine whether the issue is with your Wi-Fi or your Thermostat.
  • It’s possible that the Nest service isn’t working correctly. The Nest app may display a notice to that effect when this happens. You’ll have to wait until service is restored in this scenario. To fix the problem, reset the Wi-Fi connection on the Thermostat. Remove the Thermostat from the app and re-add it. You’re essentially telling your Wi-Fi to “forget” about the Thermostat. Now link the Thermostat to your Wi-Fi and test it out to see if it works.
  • There’s a problem with the batteries in your Thermostat. The lack of the C wire is frequently linked to this. If your Thermostat’s battery isn’t getting enough power, it won’t work correctly. By connecting the C wire, you may fix the problem of on/off Wi-Fi connections. You may either replace the C wire with a new one or convert the G wire to a C wire. If you choose the latter, make identical changes to your HVAC system.

5. The Thermostat is unresponsive and blinking

When you see a blinking green light on your Nest thermostat, it’s likely time for a firmware update. The Thermostat should then resume after a minute or two of this. If the green light continues to flash for an extended period and your Thermostat remains unresponsive, the system may have frozen. Remove the Thermostat and replace it in the base. The reconnecting screen should appear. If it doesn’t, restart it by pressing the Thermostat for a few seconds.

6. The Thermostat is constantly switching On and Off

Source: forbes.com

It’s conceivable that your HVAC system, not your Nest, is the source of your Nest’s instability. A blocked air filter, for example, may cause your air conditioning system to shut down.

Your Nest will be unable to draw electricity to charge its battery if this occurs. Your Thermostat will become unbalanced as a result of this. Request that your specialist inspects the HVAC system for any issues. You can also request that your air conditioning system be fixed.

7. Instead of cold air, the vents release hot air

The most common reason for your vents spewing hot air instead of cool air is faulty wiring. Instead of the heat pump row, you may have used your previous Thermostat’s standard wire. Fortunately, this can be remedied by renaming the wire and adequately operating the heat pump side.

Before resolving this problem, make sure the breakers are turned off and the cables are disconnected. Once you’ve correctly connected the cables, the Nest Thermostat will detect it, and you’ll be able to feel the cold air coming from your vents.


It’s not a big deal if a smart thermostat, such as the Nest thermostat, has specific problems. And now that you’re aware of all the frequent Nest thermostat difficulties as well as the appropriate troubleshooting, you can confidently fix them.