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

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I can't unlock my honeywell digital thermostat

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  • 1STHVACMAN May 11, 2010

    press the up,down and mode buttons at the same time. there could as be a lock in the configuration level of the programing

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Switch of the power and then lift the front cover upwords and seeing your manual you can unlock with your pointing finger.

Posted on Dec 02, 2010

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Remove the thermostat from its base and replace the batteries. To remove the thermostat, grasp it at the edges and pull toward you. The batteries are on the back of the thermostat housing.

Read more: How do I Unlock the Digital Display on a Honeywell RTH8500 Thermostat? ' eHow.com http://www.ehow.com/how_7267447_do-display-honeywell-rth8500-thermostat_.html#ixzz17KTxLwBU

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Go to the following link and look at page 12 of the pdf file. It explains how to access the settings so you can unlock the thermostat. Hope this helps.
http://www.ntsupply.com/files/products/TB7220_data.pdf

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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!

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