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    summer872's Avatar
    summer872 Posts: 1, Reputation: 1
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    #1

    Feb 16, 2009, 07:27 AM
    Furnace is blowing cold air sometimes.
    Hi!

    Our gas furnace kicks on and blows hot air, once the house heats up to the set temperature the furnace kicks off. After that, it will not relight until we either turn it off or move the furnistat higher. Could it be the pilot re-light or a thermostat going bad? I think the furnace is 14 years old.


    Thank you for your help!
    Summer
    KC13's Avatar
    KC13 Posts: 2,556, Reputation: 99
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    #2

    Feb 16, 2009, 05:55 PM
    Brand/model # would be helpful. If the unit blows cold air sometimes, either a fan control is sticking, a high-limit switch is opening, or a fan timer is being activated by an ignition control but the main burners aren't lighting.
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