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Carrier programmable thermostat

My carrier programmable thermostat is not displaying anything on the LCD display. I have tried pressing all the buttons, and checked the main circuit breaker box.

Posted by msgbrownell on

  • laura Newman May 11, 2010

    Do you have 24 volts ac at terminals "R" & "C"?

  • Abraham Oct 06, 2012

    i don't have 24 VAC

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jason zeringue

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  • 141 Answers

If it takes batterys pop some in and see if not it gets the power from the indoor unit

Posted on Apr 06, 2010

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If you need further help, reach me via phone at https://www.6ya.com/expert/thomas_092728000e6acb79

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