How to Reset a Honeywell Thermostat: T9, T10, Smart WiFi 9000 & More

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Learn how to hard reset a number of Honeywell thermostat models
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Have you tried to reset your Honeywell thermostat, but you've discovered your device has no reset button? Thankfully, not all hope is lost. For Honeywell thermostat models without a reset button, you can either find the reset option in the on-screen menus, or you can remove it from the wall and take out the batteries. Keep reading to learn more.

Ways to Reset a Honeywell Thermostat

  • In some models, all you need to do is press the Menu button and choose the reset option.
  • In other models, you'll need to do a series of button presses to get the reset option.
  • A couple of models require you to change numbers on the screen to reset the thermostat.
  • If your thermostat is battery-operated, remove the batteries and put them back in.
Section 1 of 9:

T9

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    It's at the bottom of the screen and has an icon of three horizontal lines.
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    You'll have to scroll to find this option.
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    Your thermostat will immediately begin to reset. This may take a few moments to complete.
    EXPERT TIP

    Victor Belavus

    Air Conditioning Specialist
    Victor Belavus is an Air Conditioning Specialist and the Owner of 212 HVAC, an air condition repair and installation company based in Brooklyn, New York. In addition to HVAC and air conditioning units, Victor also specializes in furnace repair and air duct cleaning. He has over 10 years of experience working with HVAC systems.
    Victor Belavus
    Air Conditioning Specialist

    Remember to re-program your thermostat's schedule after resetting it. Resetting your thermostat will clear out any schedules you had created for the device. Be sure to set those schedules again by choosing the Schedule or Program option on your thermostat.

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Section 2 of 9:

T10

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    It's located at the bottom of the screen, and has an icon of three horizontal lines.
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    Take note of the date code, which is a four-digit number.
    • After writing down the date code, press the back arrow button.
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    When prompted, enter the date code as the password.
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    Your thermostat will immediately begin to reset. This may take a few moments to complete.
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Section 3 of 9:

T5+/T5/T6

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    You will need to hold this button for 5 to 10 seconds.
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    Use the right arrow buttons to scroll through the options.
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    Your thermostat will immediately begin to reset. This may take a few moments to complete.
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Section 4 of 9:

Smart/Lyric Round

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    While you do this, press the i button repeatedly.
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    Your thermostat will immediately begin to reset. This may take a few moments to complete.
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Section 5 of 9:

Smart WiFi 9000

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    This button is in the upper-right corner. It may say Settings instead of Menu .
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    You'll need to scroll to find this option.
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    Your thermostat will immediately begin to reset. This may take a few moments to complete.
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Section 6 of 9:

FocusPro 6000

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    You'll need to press and hold these buttons for a few seconds until you see the screen change.
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    Use the buttons on the front of the thermostat to adjust the numbers.
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    Your thermostat will immediately begin to reset. This may take a few moments to complete. [1]
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Section 7 of 9:

VisionPRO 8000

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  1. {"smallUrl":"https:\/\/www.wikihow.com\/images\/thumb\/c\/c6\/Reset-Honeywell-Thermostat-with-No-Reset-Button-Step-19.jpg\/v4-460px-Reset-Honeywell-Thermostat-with-No-Reset-Button-Step-19.jpg","bigUrl":"\/images\/thumb\/c\/c6\/Reset-Honeywell-Thermostat-with-No-Reset-Button-Step-19.jpg\/v4-728px-Reset-Honeywell-Thermostat-with-No-Reset-Button-Step-19.jpg","smallWidth":460,"smallHeight":345,"bigWidth":728,"bigHeight":546,"licensing":"<div class=\"mw-parser-output\"><p>\u00a9 2024 wikiHow, Inc. All rights reserved. wikiHow, Inc. is the copyright holder of this image under U.S. and international copyright laws. This image is <b>not<\/b> licensed under the Creative Commons license applied to text content and some other images posted to the wikiHow website. This image may not be used by other entities without the express written consent of wikiHow, Inc.<br>\n<\/p><p><br \/>\n<\/p><\/div>"}
    It's a button located at the top of the screen.
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    It's located in the center of the screen.
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    Change the number on the left to 0710 and the number on the right to 1 .
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    Your thermostat will immediately begin to reset. This may take a few moments to complete.
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Section 8 of 9:

VisionPRO TH8321WF

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    It's a button located at the top of the screen.
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    Take note of the date code, which is a four-digit number.
    • After writing down the date code, press the back arrow button.
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    When prompted, enter the date code as the password.
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    Your thermostat will immediately begin to reset. This may take a few moments to complete.
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Section 9 of 9:

Battery-Powered Thermostats

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    To remove the thermostat from the wall, pull it away from the wall gently but firmly. [2]
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    If your thermostat can be powered down, make sure to do so before removing the batteries.
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    Leave the batteries like this for at least 10 seconds.
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    Power on the thermostat, if required, and hang it back on the wall. The thermostat will be reset back to factory settings.
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      Tips

      • If your Honeywell thermostat isn't working properly and it's over ten years old, a reset may not solve your problems, according to Victor Belavus, air conditioning specialist. "If your thermostat is over ten years old, it might be time to replace it, as older thermostats may not be as accurate or efficient."
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      References

      1. ↑ https://www.youtube.com/watch?v=9_vTBbmtIsU
      2. ↑ https://www.honeywellhome.com/us/en/support/how-do-i-reset-my-honeywell-home-device/

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