8 Ways To Fix Ecobee Thermostat Showing Wrong Temperature.

One of the most frequently asked questions on Google regarding the Ecobee Thermostat is why the device displays incorrect temperature readings.

When this device doesn’t accurately measure the ambient temperature, its performance may be affected and lead to mismanagement of your HVAC system.

Mismanaging your HVAC system results in an uncomfortable temperature around the house and may lead to higher energy costs, something you absolutely don’t want.

So what are the reasons that led to this problem and what can you do to solve it? I’ll answer this question in detail in the rest of this post.

To begin, the main reasons that may caused the Ecobee thermostat to display a wrong temperature are empty batteries, connection issues, poorly positioned sensors, or it can arise due to software errors.

Check The Temperature Accuracy Of Your Ecobee Thermostat.

The best way to make sure that the temperature displayed by your Ecobee is wrong is to measure the ambient temperature using another device.

So I suggest using a thermometer, place the thermometer in the center of the room at least 2 feet off the floor to get an accurate measurement.

Compare the result that the thermometer shows with that of the thermostat, if you find a big difference (above 3°C) it means your device needs repair.

How To Fix Ecobee Thermostat Reading The Wrong Temperature?

If you find a large difference between the room temperature tested by the thermometer and that displayed on Ecobee, the following methods will show you how to fix the issue.

Method 1: Make Sure Your Sensor’s Battery Isn’t Dead.

Some sources on the internet are saying that the Ecobee SmartSensors that work with the “3-volt CR-2032” battery is designed to last up to 24 months, while the new version that uses a larger CR2477 battery which lasts for 3 to 5 years.

When the battery level is too low, the performance of this device goes down and this could be the root cause of your problem.

So make sure to replace the battery at the right time to avoid this kind of problem, and let the device measure the temperature accurately.

Method 2: Check Your Internet Connection.

The second thing I would recommend is to check if the Ecobee sensors and thermostats are successfully connected to the internet.

This is important because the sensors will measure the room temperature and send it to your thermostat and for that an internet connection is needed.

You can try these tips to fix your internet connectivity issues:

  1. Reboot and reset your router.
  2. Update the router’s firmware.
  3. Boost Wifi Signal to let it reach your devices.
  4. Reduce frequency interference.

Here’s a full article to fix your thermostat connectivity issues: “9 Ways To Fix Ecobee Thermostat Not Connecting To Wifi”.

Method 3: Bad Placement of The Thermostat and Its sensors.

Placing the smart thermostat and sensors in the right location is critical to allow them to measure the right temperature inside your home.

So what is the right location?

You must place your device in a place where it is not exposed to the sun, otherwise, it will detect a higher temperature inside the room.

This will lead your thermostat to heating issues you can check out this article to fix it: “8 Ways To Fix Ecobee Thermostat Not Heating”.

Also, make sure you don’t put your sensors next to the kitchen or appliances like the heater, air conditioner, or air vents to let them work properly.

Method 4: Power Cycle Your Devices.

A power cycle process is a good thing to do with your Ecobee thermostats and sensors when they are not measuring the temperature accurately.

Power cycling these devices can fix software errors and recover from an unresponsive state, as well as resolve connectivity issues.

To do this, remove the battery from your sensors wait a few minutes, then reinsert them to see if it works properly.

To reboot the thermostat you’ll have to turn it off from the circuit breaker and then turn it back on after one or two minutes.

If nothing changes and your device is still measuring the wrong temperature, move on to the next solution.

Method 5: Reset The Ecobee Thermostat.

Resetting your Ecobee is another solution to try as it can be a powerful way to calibrate your thermostat.

All settings, schedules and preferences you’ve set on the thermostat before will be lost with a hard reset as the device will return to factory settings.

Here are the steps to follow to reset your Ecobee thermostat:

  1. On the thermostat, go to the Main Menu.
  2. Then go to Settings.
  3. Select Reset, then Reset All.

Method 6: Update The Ecobee Software.

Ecobee regularly releases new updates to fix bugs and keep their devices running properly.

So if your thermostat is not measuring the correct temperature, it could be due to an outdated firmware version running on the device.

All you have to do to update it is connect it to the internet and it will do the job automatically.

If your Ecobee isn’t running on its latest firmware version, please be patient it will update itself as the upgrade continues to roll out.

Note: You can check the latest version of the firmware on their website.

Method 7: Claim for Warranty.

If all the above tips didn’t solve your issue and your device is still measuring the wrong temperature, I recommend contacting the Ecobee support team.

Ecobee thermostats and sensors are under a 3-year limited warranty, in this period Ecobee shall, at its option, repair or replace any defective product, at no charge.

After you’ve tried all the solutions mentioned above and none of them worked with you that could be due to a hardware issue.

So contact customer support and they’ll give you more information and if they’re gonna repair it or replace it.

Method 8: Take Your Thermostat To a Technician.

If the warranty period has expired and all the tips mentioned here didn’t solve your problem, I suggest that you take your thermostat to a technician.

A thermostat technician has more experience in fixing this kind of device so he’ll tell you if the problem is easy to solve or if you need to replace your device.

Final Words.

This is all that I have for you, make sure to follow the guide and try all these solutions carefully.

But if you see that all the tricks did not work for you, the intervention of a specialist would be necessary in this case.

I also invite you to read this blog post to get more ideas on how to use your Ecobee Thermostat more efficiently.

Adam B