How to Reset Mitsubishi One Thermostat: A Comprehensive Guide

Resetting your Mitsubishi One thermostat can be a crucial step in troubleshooting issues or restoring its default settings. This comprehensive guide will walk you through the step-by-step process of resetting your Mitsubishi One thermostat, covering both the MHK1 and MRCH1 remote models. Get ready to take control of your home’s climate with this expert-level tutorial.

Accessing the Thermostat Settings

MHK1 Remote

  1. Locate the Fan button and the Up Arrow button on your MHK1 remote.
  2. Press and hold both buttons simultaneously for 3 seconds to access the thermostat settings.

MRCH1 Remote

  1. Identify the + fan button on your MRCH1 remote.
  2. Press and hold the + fan button until the controller changes to setup mode.

Navigating to the Advanced Settings

how to reset Mitsubishi one thermostatImage source: Mitsubishi ac By Dinkun Chen

MHK1 Remote

  1. Once in the settings menu, press the “More” button repeatedly until you reach setting 125.

MRCH1 Remote

  1. Refer to the user manual for your MRCH1 remote to locate the instructions for accessing the advanced settings. The manual can be found at

Adjusting the Fan Settings

MHK1 Remote

  1. In setting 125, you can adjust the fan behavior:
  2. Set the value to 1 (default) to keep the fan running once the set point is reached.
  3. Set the value to 2 to turn the fan off once the set point is reached.

MRCH1 Remote

  1. Ensure that any function locks are turned off.
  2. Verify the clock and schedule settings to ensure they are configured correctly.

Saving and Exiting the Settings

MHK1 Remote

  1. Once you have made the desired adjustments, press the Mode button to save the changes and exit the settings menu.

MRCH1 Remote

  1. Follow the instructions in the user manual to save the changes and exit the settings menu.

Remember to always consult the user manual for your specific Mitsubishi One thermostat model, as the exact steps and advanced settings may vary. The user manual will provide detailed instructions and precautions to ensure a successful reset.

Additional Considerations

  • If you encounter any issues or have difficulty navigating the settings, refer to the user manual or contact Mitsubishi’s technical support for further assistance.
  • It’s recommended to keep a copy of the user manual handy, as it can provide valuable information on the various features and settings of your Mitsubishi One thermostat.
  • Familiarize yourself with the advanced settings and their impact on the thermostat’s performance to ensure optimal comfort and energy efficiency in your home.

By following this comprehensive guide, you’ll be able to reset your Mitsubishi One thermostat with confidence, ensuring your home’s climate control system is functioning at its best.