Common Problems With Nest Thermostat And How To Troubleshoot?

Apparently, Nest thermostat gives up when you need it most, sometimes. And its problems can reveal in various forms!

Luckily, there are easy fixes for most of the common problems with Nest thermostat. And if you are handy, you don’t need a professional to fix it for you.

Stay with me to learn some quick fixes!

Nest thermostat Problems

common problems with Nest thermostat

When it comes to smart thermostats, Nest is definitely one of the best. Sadly, it may become unresponsive or show various symptoms of trouble.

Here is a list of those problems:

  • Not controlling the heating and cooling unit properly.
  • Shot cycling heating and cooling.
  • Motion sensing does not work or showing you wrong temperature readings.
  • It indicates a low battery and needs to shut down.
  • Suddenly turns off and on. Sometimes, won’t turn off too!
  • The display of the thermostat becomes unresponsive and won’t light up.
  • From the Nest application, the thermostat gets offline and disconnected from the Wi-Fi.
  • Making strange noise like stuttering, thumping, or chattering.

Troubleshooting Nest Thermostat Problems

The fact is— these above-mentioned problems may happen to any smart thermostat brand. So, without getting frustrated, keep your head cool and follow my troubleshooting tips.

  • Nest Thermostat Won’t Turn On or Off

If it does not turn on, you should take it off the base and charge it using a USB cable. You can charge it from the computer or wall charger.

You should charge it for at least 1 hour. If it turns on within a few minutes of charging, shut it down. Then turn it on again. Once restarted, hook it up to finish charging.

Once fully charged, re-attach it to the base and it will be working just fine again! But what if it turns on but acts sluggish?

Well, you have to restart it. Turn it off and then turn it on again. This should solve the problem!

  • Nest Thermostat Not Cooling

Even worse, it may start blowing hot air instead of cooling your room! So, let’s see how you can fix it easily.

First of all, this happens when you don’t wire it according to the heat pump row. You have probably wired it according to the conventional row.

You can either browse the Nest website or add the thermostat in the Nest app to get the right interactive wiring guide. Follow that guide to wire it correctly.

Once wired correctly, the thermostat will detect the right wiring and blow cold air.

  • No Power To Rh Wire

This may happen when you hook it up for the first time. The nest may tell you there is no power to the Rh wire; so, it’s can’t turn on. It’s a little bit tricky but still solvable easily.

But first, let’s look at the probable causes first why it may happen.

A tripped breaker should be your first suspect. But before you open the air handler to perform the check, make sure the breakers are off!

Now, check the breakers whether tripped or not. If you have a blown fuse, that’s easy to fix! Just replace the blown fuse with a good one.

You can find new fuses at your local hardware store and it will cost you only a few bucks!

Now, watch this video to learn these troubleshooting!

Frequently Asked Questions (FAQs)

Why is my Nest Thermostat not working?

If your Nest won’t turn on, most probably it’s a power issue and most likely the battery has run out of juice.
To preserve the battery life, Nest will turn off the Wi-Fi, display, and other features when it has a power issue. And that’s why it won’t turn on.

Why does my nest stop cooling?

Nest will stop cooling if its C connector is not connected to your system properly. Use the thermostat diagram to check all the wires are connected the right way to the right thermostat connectors.

Why is my Nest thermostat reading the wrong temperature?

If your Nest thermostat is close to the hot water pipes, air vents, warm air, or electrical outlets, it may show you the wrong temperature.
Because close proximity to such stuff will cause the thermostat’s Wi-Fi chip to overheat and affect its temperature reading feature.

Should nest begin by heating or cooling?

Forced air heating is the first option.

Why is my Nest thermostat blowing cold air?

When your Nest thermostat is in heating mode but your heat pump is blowing cool air, adjust the O/B wire orientation settings of your heat pump on the Nest.

Why does Nest say in 2+ hours?

It’s a smart thermostat. It understands your home and the weather. So, it says in 2+ hours, it’s simply telling you that this is an estimate time it will take to hit your new set point.

How do I know if Nest thermostat is charging?

If it’s charging, you will see a blinking red light located at the top of the thermostat.

What does resetting Nest Thermostat do?

It erases all the options you choose and all the personal information. You need to reset your Nest if you want to install it in a new location.

Final Thoughts

Again, it’s a cool smart thermostat despite having some issues. But now that you know all the common problems with Nest thermostat and relevant troubleshooting, you can deal with these issues confidently.

If you face other problems not mentioned here, let me know in the comment box. I will include those problems in this article!  

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