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-   -   Programmable thermostat not working (https://www.askmehelpdesk.com/showthread.php?t=423962)

  • Dec 10, 2009, 06:26 PM
    kbennett1
    Programmable thermostat not working
    The display screen on our Honeywell programmable thermostat is not on, and the heat won't come on. We can turn the fan on, so know it's not the breaker. We replaced the batteries, but it still doesn't work. Any ideas?
  • Dec 10, 2009, 06:35 PM
    KISS

    There may be a reset button *activated by a paper clip). Check the manual,
  • Dec 10, 2009, 07:19 PM
    T-Top

    You will need 24v make it work. You have the R(if the blower is working when you turn it to on) but did you remember the common (C) wire. You may need to add a jumper from R to RH on the thermostat.

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