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

    Feb 26, 2007, 08:09 PM
    Fan blower runs on and off all day
    Why does the fan blower run on and off all day? How can I turn it off and save energy and the fan blower motor from burning out? Please help
    Thank you
    letmetellu's Avatar
    letmetellu Posts: 3,151, Reputation: 317
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    #2

    Feb 26, 2007, 09:59 PM
    What kind of furnace do you have? Is it running because the thermostat is calling for hear?
    Does the fan run for a while and then turn off for a while and in the mean time does the fire in the burners come on. Have you checked for a dirty filter. A dirty filter can make your furnace cycle like you are describing. And if you have run the furnace long enough with a dirty filter the evaporator coil can get dirty and do the same thing.
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