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Why Does Nest Thermostat Show Wrong Temperature (Find Out)

Why Does Nest Thermostat Show Wrong Temperature (Find Out)

A wrong temperature reading on your Nest Thermostat could be due to the adaptation in your home. If you just installed the thermostat, it takes time for the temperature to adapt.

Selling over 11 million since it was launched, the Nest Thermostat is a smart thermostat that was developed by Nest Lab and was later acquired by Google. It is an AI-developed thermostat that is used to read and adjust the temperature in the environment according to your preference.

To use the Nest Thermostat, you have to download the Google Home app or the Nest app.

In some instances, you might notice a wrong temperature reading on your Nest Thermostat. This is usually normal when you just installed the device. You have to wait for at least 48 hours for the temperature reading to set and adapt.

Let me explain why it happens and how to solve it in this article. Keep reading!

Common Causes of Wrong Temperature Reading in Nest Thermostats

These are the common reasons why wrong temperature readings are showing on your Nest Thermostat such as:

  • the device hasn’t adapted to the temperature
  • the thermostat is attached to a heated wall
  • there is a conflict between temperature settings on the device
  • wrong location

Here’s what to do:

  • Wait for 48 hours for the temperature to set on your device.
  • Make sure the thermostat is away from heated walls and metal surfaces. It should be placed in an area not impacted by warmth or direct heat from sunlight.
affordableincompatible with other HVAC systems
compatible with other security systems
automated scheduling

How do I prevent the Nest Thermostat’s temperature changes? 

The Auto-Schedule option in the Nest app on your smartphone can be disabled to prevent the Nest Thermostat from adjusting the temperature. 

First, make sure you are signed in to the Nest app on your smart device and then launch it. The Auto-Schedule and Home/Away features can be disabled by clicking on the Nest Thermostat. 

You can also install the wireless Nest Temperature Sensor in any room and it connects to your thermostat. You can modify the temperature of a particular room with one of these temperature sensors. 

The temperature in your home may vary in different rooms if you have a Nest Temperature Sensor installed. 

How to Fix Wrong Temperature Reading on Nest Thermostat

Consider the location of the thermostat.

Your Nest Thermostat will read accurately if you place it somewhere where it will be exposed to sunlight for a number of hours each day. 

As a result, the thermostat will operate the heating system at a lower temperature in the winter or more frequently in the summer, which can interfere with your comfort and use more energy. 

Other factors, such as closeness to heating and cooling equipment or positioning your thermostat near the kitchen or windows, might also result in erroneous temperature readings.

In order to put your Nest Thermostat in the most effective area for your device to function correctly, be sure to take these considerations into account. 

The device must be level.

For many older mercury thermometers to read the proper temperature, the device must be level.

To receive the most precise temperature readings, you might need to fix the position of your thermostat on your wall if it wasn’t level when it was installed or if it was somehow knocked out of place. 

Clean the thermostat.

Use a microfiber cloth to clean the thermostat.

Keeping the device clean is important to avoid accumulating dirt and dust which may cause misreading on the thermostat.

Change batteries regularly.

If you’re using exchangeable batteries, make sure to update them at the appropriate time using a battery from a reputable manufacturer.

Make sure to recharge your thermostat before the batteries run out entirely.

Replace your old thermostat.

Your thermostat will eventually age and begin to have issues, such as reading the wrong temperature, just like any other home appliance. 

In addition to resolving your issues, switching to a newer thermostat will probably provide you access to energy-saving options like programmed settings. 

The Nest Thermostat’s temperature varies at random for some reason. 

All Nest Thermostat customers are having trouble getting their houses to stay at the temperature they choose. Those who experience it find it extremely frustrating. 

The set temperature values on the Google Nest Thermostat occasionally alter at random during the day.

It should be emphasized that the problem doesn’t just affect the planned temperatures. According to specific accounts, even if a manual temperature setting is made, the temperature may still fluctuate randomly. 

Potential location-based bug 

Nest thermostat mounted to a wall
Nest thermostat mounted to a wall

The problem would be caused by the Nest app’s location detection system operating incorrectly. Some users claim that they occasionally look to be away from home even when they are not.

This implies that the Google Nest Thermostat’s Eco mode is continuously engaged and cancelled, even at home. 

Google hasn’t made any official statements on this yet. Additionally, there is no evidence that the issue has been escalated to the team. 

Nest Thermostate Manuel


  • There are various reasons why your Nest Thermostat is displaying the wrong temperature reading. It could be due to the device not setting the temperature yet or it’s placed on a heated surface.
  • Calibration is essential to maintain the most accurate temperature reading.
  • Make sure the thermostat is away from heated or metal surfaces and direct sunlight.

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