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

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How do i change the battery on my honeywell thermastat?

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  • grisell915 Feb 01, 2010

    thank you sooooo much! it worked!

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You have to remove front cover. Most times there are little snaps on the sides of cover to undo. Get a smallish screw driver and pry the cover off very carefully. any more questions just get back to me ken

Posted on Jan 31, 2010

  • Ken Bledsoe Feb 02, 2010

    If you would just rate my help I would be forever in your debt. My ratings is what I live for helping people and when you see my numbers you know that I am knowing what I am talking about. Okay thanks

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Go here and down load the manul for you t-stat which will then tell you how you can unlock it...

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http://www.fixya.com/support/r3894275-manual_honeywell_find_honeywell_manuals

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Our air conditioning was working during the day. when one family member turned the air up from 72 to 75 she saw the screen process what she wanted and walked away. when another family member went to turn...


open the thermostat and look for batteries, 3 AA
http://www.heater-home.com/photos/2129-5b.jpg


http://www.heater-home.com/manuals/th8321u1006manual.pdf

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