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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?

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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

Posted on Apr 15, 2008

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http://www.heater-home.com/photos/2129-5b.jpg


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