Ecobee Thermostat Temperature Not Going Down: Troubleshooting Guide

Is your ecobee thermostat refusing to lower the temperature despite your best efforts? Don’t sweat it! We’ve got you covered. In this comprehensive troubleshooting guide, we will delve into the common reasons behind the issue of the “ecobee thermostat temperature not going down” and provide you with practical solutions to resolve it.

Whether you’re experiencing this problem in your home or office, we’ll help you regain control over your thermostat and restore a comfortable environment.

1. Why Won’t My Ecobee Thermostat Lower the Temperature?

Have you ever found yourself in a situation where your ecobee thermostat simply refuses to lower the temperature? It can be frustrating, especially during hot summer days or when you’re trying to save energy. Let’s explore some potential causes and effective solutions to overcome this obstacle.

2. Improper Sensor Placement

One possible reason for the ecobee thermostat temperature not going down is improper sensor placement. The sensor plays a vital role in accurately measuring the ambient temperature, which influences the thermostat’s operation. If the sensor is placed near a heat source or in direct sunlight, it may provide inaccurate readings, leading to incorrect temperature adjustments.

To resolve this issue, ensure that the sensor is positioned in an ideal location, away from direct sunlight and any heat-emitting appliances. Additionally, make sure the sensor is clean and free from any obstructions that could interfere with its functionality.

3. Inadequate Airflow

Another factor that can hinder your ecobee thermostat from lowering the temperature effectively is inadequate airflow. Insufficient airflow can prevent the cool air from circulating properly, causing the temperature to remain stagnant.

To improve airflow, check your air filters and replace them if they are dirty or clogged. Additionally, ensure that there are no obstructions around the vents or registers. Proper airflow is crucial for your ecobee thermostat to function optimally and maintain a comfortable indoor environment.

Ecobee Thermostat Temperature Not Going Down

4. Check Your Fan Settings

Sometimes, the ecobee thermostat temperature may not decrease due to incorrect fan settings. If your thermostat’s fan is set to “On” rather than “Auto,” the fan will run continuously, even when the desired temperature has been reached. This constant circulation of air can impede temperature reduction.

To address this issue, check your thermostat’s fan settings and ensure it is set to “Auto.” This setting allows the fan to operate only when cooling or heating is required, enabling the temperature to decrease efficiently.

5. Assess Your Schedule and Preferences

It’s not uncommon to accidentally override the temperature settings on your ecobee thermostat. Whether it’s a forgotten adjustment or unintentional input, it can lead to the temperature not going down as desired.

To rectify this, review your thermostat’s schedule and preferences. Ensure that there are no conflicting settings or overrides that may be preventing the temperature from lowering. If necessary, reset the schedule and preferences to their default values and reconfigure them according to your preferences.

6. Calibration Concerns

In some cases, your ecobee thermostat temperature may appear to be not going down due to calibration issues. A calibration discrepancy can cause the thermostat to display an inaccurate temperature reading, leading to improper adjustments.

To address calibration concerns, you can verify the temperature accuracy of your ecobee thermostat by comparing it with a reliable and calibrated thermometer. If there is a significant difference between the thermostat’s reading and the thermometer, you may need to recalibrate your ecobee thermostat. Consult the user manual or contact ecobee customer support for guidance on how to recalibrate the thermostat accurately.

7. Software Updates

Outdated software can sometimes interfere with the proper functioning of your ecobee thermostat, including temperature adjustments. Keeping your thermostat’s software up-to-date ensures compatibility with the latest features and bug fixes.

  1. Open the ecobee mobile app or log in to your ecobee web portal.
  2. Go to “Main Menu” and click “About.”
  3. Check the current software version and compare it with the latest version available on the ecobee website.
  4. If an update is available, follow the instructions provided by ecobee to install it.

Updating the software may resolve any software-related issues that could be affecting the temperature control of your ecobee thermostat.

8. Check for Sensor Connectivity Issues

A poor or lost connection between your ecobee thermostat and its sensors can impact temperature control. If the thermostat is not receiving accurate temperature readings from the sensors, it may struggle to adjust the temperature accordingly.

To troubleshoot sensor connectivity issues:

  1. Ensure that the sensors have a clear line of sight to the thermostat.
  2. Check the battery levels of the sensors and replace them if necessary.
  3. Restart the thermostat and sensors by removing the batteries for a few seconds and reinserting them.
  4. If the issue persists, try re-pairing the sensors with the thermostat according to the manufacturer’s instructions.

Maintaining a reliable connection between the ecobee thermostat and its sensors enhances temperature accuracy and improves overall performance.

9. HVAC System Malfunctions

If none of the previous troubleshooting steps have resolved the issue of your ecobee thermostat temperature not going down, there may be an underlying problem with your HVAC (heating, ventilation, and air conditioning) system. Malfunctions such as a faulty compressor or refrigerant leaks can inhibit the cooling process, resulting in ineffective temperature reduction.

At this point, it is recommended to seek professional assistance from a qualified HVAC technician. They will be able to diagnose and address any system malfunctions that may be contributing to the temperature control issue.

Frequently Asked Questions (FAQs)

Q: Why is my ecobee thermostat temperature not going down even when the AC is running?

A: This issue could be caused by improper sensor placement, inadequate airflow, fan settings, schedule overrides, calibration concerns, or software-related problems. Follow the troubleshooting steps outlined in this guide to identify and resolve the specific cause.

Q: Can a dirty air filter affect temperature control?

A: Yes, a dirty air filter can restrict airflow, leading to inadequate cooling. Regularly check and replace dirty air filters to maintain optimal airflow and temperature control.

Q: How often should I recalibrate my ecobee thermostat?

A: Calibration is rarely required, but if you suspect a temperature discrepancy, you can compare your ecobee thermostat’s reading with a calibrated thermometer. Recalibrate if there is a significant difference in readings.

Q: I have followed all the troubleshooting steps, but my ecobee thermostat still won’t lower the temperature. What should I do?

A: If you have exhausted all the troubleshooting steps and the issue persists, it’s best to contact ecobee customer support or consult with a professional HVAC technician. They can provide further guidance and assistance based on the specific details of your situation.

Also Read: Ecobee Thermostat Keeps Turning Off.


Experiencing the frustration of an ecobee thermostat temperature not going down can be inconvenient, particularly during hot weather. However, by following the troubleshooting steps outlined in this guide, you can identify and resolve the issue effectively. Remember to check for improper sensor placement, ensure adequate airflow, review fan settings and schedule overrides, verify calibration, and keep the thermostat software up-to-date.

If you’ve tried all the troubleshooting steps and the problem persists, don’t hesitate to seek assistance from ecobee customer support or a professional HVAC technician. They have the expertise to diagnose and resolve complex issues with your thermostat or HVAC system.

Regaining control over your thermostat’s temperature is essential for maintaining a comfortable indoor environment. With the right approach and the help of this guide, you’ll be on your way to enjoying the optimal functionality of your ecobee thermostat once again.

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