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Once I set my thermostat can I lock it out to prevent it from being changed? I have a Honeywell RTH4300B.

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no you cannot lock this t-stat out. but you can buy a lockbox to go around it at your local hardware store. here is a link to the instruction booklet if you dont have it linkhttp://www.instructionsmanuals.com/modelo-5886-en-Thermostats.htm

Posted on Oct 30, 2008

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1 Answer

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I have a TB8220U1003 thermostat and I want to lock out the screen. the keypad lock out number is 0670. My options do not go that high on the stat..??


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