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Unlock t7300 thermostat - Honeywell Heating & Cooling

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  • kilowatt76 Jan 05, 2009

    I read the whole manual and there is no section on how to unlock this thermostat. If anyone knows how to unlock a Honeywell T7300B1003 thermostat, please let me know. Thanks.

  • Joseph Lillie
    Joseph Lillie May 11, 2010

    Can I have the full model number of the thermostat please.



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There is a dip switch inside for unlocking the keyboard. As far as getting into the setup mode, it takes pressing 3 or 4 keys simultaneously. The up and down arrows are involved, but I'm not sure about the other keys.

Posted on Jan 05, 2009

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Here's a link to the installation instructions.  i don't see where there's a lock/unlock feature, maybe these will help. T7300

Posted on Dec 02, 2008


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The Thermostat Wizard is an interactive tool that will guide you through wiring and troubleshooting your thermostat, as well as programming it to the most comfortable settings for you and your family. Simply answer the questions from the Thermostat Wizard to correctly connect, troubleshoot and/or program your Honeywell Thermostat. You can even print the instructions and bring them right to the thermostat to help make things easier.
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