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    JohnnySmoke Posts: 1, Reputation: 1
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    Mar 25, 2011, 11:58 AM
    Furnace constantly on, thermostat not controlling it, can't set temp.
    My furnace is constantly on and blowing hot air, W-R thermostat up/down buttons not changing temp setting, nor is display lighting up. Both the temp set point and current temp read 72 degrees. Disconnected white wire, furnace blows cool air but is still constantly on. Moved Heat/AC button to off, furnace finally shut off. Replaced batteries but no difference. Sound like a bad therm?

    Thanks

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