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How to unlock a honeywell TB7220U commercial thermostat

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Posted on Jan 02, 2017

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SOURCE: How to lock a Honeywell TB7220U Thermostat

With directions go to system. Then hold down 2 blanks on either side of middle for 30seconds this shows you Advanced settings . Read through and find the proper settings

Posted on Jul 04, 2009

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1 Answer

How to unlock screen


Change battery located on back of thermostat??

Go to google
Search for your model number 1234XX .pdf
Add .pdf in search parameter.
Honeywell posts most their thermostat manuals.
Open pdf file, and then Use Ctrl+F for search feature
Word-Search manual

To find model number on thermostat, remove from wall.
Model number appears on back.
Don't forget to replace battery while you have back exposed.
Dead battery can also cause lockout and malfunction

Apr 18, 2013 | Honeywell TB8220U1003 Commercial Vision...

1 Answer

How do I lock keys on TB7220U? The previous advice did not work - there are no blank keys.


Access the ISU (installer setup) menu by pressing the system key from the main screen then press and hold the two keys on either side of the center for approximately five seconds. Hit next until you find 0670 and then change the value to 4. http://www.forwardthinking.honeywell.com/related_links/thermostats/commercial_pro/install/62_0221.pdf On a side note, this information was insanely hard to find.

Nov 15, 2010 | Honeywell Electronic Programmable...

1 Answer

How to lock a Honeywell TB7220U Thermostat


With directions go to system. Then hold down 2 blanks on either side of middle for 30seconds this shows you Advanced settings . Read through and find the proper settings

Jul 02, 2009 | Honeywell Electronic Programmable...

1 Answer

Thermostat is in the locking position, need to unlock


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.
Go to: http://yourhome.honeywell.com/Consumer/Cultures/en-US/Support/Thermostat+Wizard/

Please rate my answer!

Mar 04, 2009 | Honeywell Electronic Programmable...

1 Answer

Honeywell Commercial PRO TB7220U Touchscreen Programmable Thermostat wont come off screen lock and we wanna turn on air conditioning... how do you shut off screen lock?


That one is fun. Touch the system cycle button. then touch the two spaces on both sides of the center button at the bottom hold them down at the same time. After 5-10 seconds the screen should flash and show numbers int the center of the screen touch the screen til the numbers 670 appear. then change the numbers beside it to 0. then click done. now you should be able to adjust temperature as needed

Apr 13, 2008 | Heating & Cooling

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