Question about Honeywell Electronic Programmable Heat/Cool Thermostat - CT3300A100 Heater

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Unlock Honeywell TB7220U1004 Ultrastat Commercial Programmable Thermostat unlocking thermostat

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  • gator42_2001 May 11, 2010

    try holding down the up /down arrows

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Pull off face and remove batteries and reinsert.

Posted on Jun 01, 2009

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How do I set my ac I have an ultrastat by honeywell?


HONEYWELL WEBSITE:
Go to honeywell.com
Under red welcome sign
Bottom red highlighted box literature/image search
Type in thermostat model number
Click on arrow to right
Then click on the PDF files owners manual / installation instructions
If you can’t find what you want, the bottom left and bottom of web
Page, they have homeowners assistance and Home products to get the help you need.

Aug 17, 2010 | Honeywell Electronic Programmable...

1 Answer

How does one set a Honeywell ultrastat thermostat to cool a house. Ours wont shift into air conditioning


Go to honeywell.com
Under red welcome sign
Bottom red highlighted box literature/image search
Type in thermostat model number
Click on arrow to right
Then click on the PDF files owners manual / installation instructions
If you can’t find what you want, the bottom left and bottom of web
Page, they have homeowners assistance and Home products to get the help you need.

May 09, 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/

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Mar 04, 2009 | Honeywell Electronic Programmable...

1 Answer

Locked themostat


go to this link, www.honeywell.com. In the search box, type in the model number.

Aug 05, 2008 | Honeywell Electronic Programmable...

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