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    brandguy's Avatar
    brandguy Posts: 1, Reputation: 1
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    #1

    Jan 3, 2008, 02:59 PM
    Thermostat batteries dying regularly
    I have a pretty new house with a new furnace. I have a pretty sophisticated home control thermostat made by control4 and I've gone through a couple sets of backup thermostat batteries lately (1/month). When the batteries die, the furnace turns on and bakes the space.

    Is this likely a bad transformer or some other problem?
    T-Top's Avatar
    T-Top Posts: 1,871, Reputation: 100
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    #2

    Jan 3, 2008, 08:35 PM
    For a new and sophisticated system you should not need batteries to run or even be in the T-stat to help it work. The batteries will not help the system work if the power is off. If you have a bad transformer you have no heat,cooling or blower at any time but your thermostat will have a display. I would say it's a bad thermostat.
    KISS's Avatar
    KISS Posts: 12,510, Reputation: 839
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    #3

    Jan 3, 2008, 08:41 PM
    I need to add "except for backup when power fails."
    labman's Avatar
    labman Posts: 10,580, Reputation: 551
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    #4

    Jan 4, 2008, 05:51 AM
    Before replacing the thermostat, make sure it has a good connection to the common if it needs one.
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