How to Reset Gree One Thermostat: A Comprehensive DIY Guide

Resetting a Gree one thermostat can be a straightforward process, but it’s essential to follow the right steps to ensure a successful reset. This comprehensive guide will walk you through the entire process, from powering down your AC unit to accessing advanced features on specific Gree models, providing you with the technical details and expert-level insights needed to tackle this task confidently.

Powering Down the AC Unit

The first step in resetting a Gree one thermostat is to power down the AC unit. Begin by locating the circuit breaker that supplies power to your AC unit and flip it to the “off” position. This will cut the power to the entire system, ensuring a safe and effective reset.

Next, locate the power switch on the outdoor unit of your AC system and switch it to the “off” position. This additional step helps to ensure that all power is removed from the system, preparing it for the reset process.

Locating the Reset Button

how to reset Gree one thermostatImage source: Gree ac by Air Fans

Most Gree air conditioning units are equipped with a dedicated reset button, typically a small, red button that can be easily overlooked. Consult your owner’s manual to determine the exact location of the reset button on your specific Gree model.

If you’re having trouble locating the reset button, carefully examine the control panel or the exterior of the indoor and outdoor units. The reset button is often situated in a discreet location, so be thorough in your search.

Performing the Reset

Once you’ve located the reset button, press and hold it for 3 to 5 seconds, then release it. This action will initiate the reset process, clearing any existing settings or errors that may have been causing issues with your Gree one thermostat.

It’s important to note that the duration of the button press is crucial. Holding the button for too short a time may not trigger the reset, while holding it for too long could potentially cause additional issues. Adhere to the recommended 3 to 5 seconds for best results.

Restoring Power

After pressing and releasing the reset button, it’s time to restore power to your AC unit. Begin by flipping the circuit breaker back to the “on” position, followed by switching the power switch on the outdoor unit to the “on” position.

Once power has been restored, your Gree one thermostat should be reset and ready for use. Proceed to the thermostat and ensure that it is set to the “cool” mode, with a temperature setting that is lower than the current indoor temperature. After a brief delay, your air conditioning system should start up and begin cooling your home.

Advanced Features and Specific Models

For users of the Gree U-Match Slim Duct Unit, the reset process may differ slightly from the general steps outlined above. The user manual for this model suggests the following additional steps:

  1. Power the unit on or off: Press the power button to turn the unit on or off.
  2. Select fan speed: Press the fan button to choose from Auto, Low, Medium, High, or Turbo fan speeds.
  3. Select and adjust modes: Press the mode button to cycle through the available modes, including HEAT, COOL, DRY, and FAN ONLY, and adjust the settings as needed.
  4. Adjust temperature and time: Use the “+” and “-” buttons to change the temperature and time settings.
  5. Access additional functions: Press the function button to access advanced features like Turbo, Sleep, X-Fan, I-Feel, and Freeze Guard.

The Gree U-Match Slim Duct Unit also offers several advanced features that may be of interest to more experienced users, such as:

  • X-Fan mode: Allows the indoor fan to run for a pre-determined time after the unit is turned off, helping to remove additional moisture from the coil.
  • Dry mode: Runs the indoor fan at low speed and turns it off when the desired temperature is reached.
  • Condensate Sentry: Automatically shuts off the system when the condensate level is too high, preventing overflow of the condensate pan.

By familiarizing yourself with these advanced features and the specific reset process for your Gree model, you can ensure that your thermostat is functioning at its optimal level and take full advantage of the capabilities of your Gree air conditioning system.


Resetting a Gree one thermostat is a straightforward process that can help resolve a variety of issues with your air conditioning system. By following the steps outlined in this comprehensive guide, you can confidently power down your AC unit, locate the reset button, perform the reset, and restore power, all while exploring the advanced features available on specific Gree models.

Remember to always consult your owner’s manual for model-specific instructions and safety precautions, and don’t hesitate to seek professional assistance if you encounter any difficulties or have concerns about the integrity of your AC system. With this guide, you’ll be well on your way to a successfully reset Gree one thermostat and a properly functioning air conditioning system.