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    mreilly615's Avatar
    mreilly615 Posts: 3, Reputation: 1
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    #1

    May 4, 2011, 05:15 AM
    Furnace blower kicks on even when the thermostat is in the off position.
    In the spring and fall when the heat and air are off the blower on the furnace will kick on and blow cold air. It has started doing it now with the heat on. After the temp has been reached and the blower kicks off, a while later the blower will kick on and blow cold air but the temp on the thermostat is at the correct temp. The furnace is a Janitrol and is 14 years old.
    KC13's Avatar
    KC13 Posts: 2,556, Reputation: 99
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    #2

    May 5, 2011, 03:31 AM

    What is the model # of the furnace?
    mreilly615's Avatar
    mreilly615 Posts: 3, Reputation: 1
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    #3

    May 7, 2011, 04:15 PM
    The model number is GMPN080-4. Serial number 96018 26194. Any help would be great. Thanks.
    KC13's Avatar
    KC13 Posts: 2,556, Reputation: 99
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    #4

    May 7, 2011, 09:59 PM

    It sounds like either a problem with a limit circuit component or the circuit board. How long have you experienced this situation?
    mreilly615's Avatar
    mreilly615 Posts: 3, Reputation: 1
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    #5

    May 8, 2011, 07:28 AM
    About a month
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