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    Mike60521 Posts: 1, Reputation: 1
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    #1

    Jul 22, 2011, 06:55 AM
    Blower comes on but shuts off after about a minute
    I have a Armstrong Ultra 90 furnace - blower comes on for about a minute and then shuts off. This is true whether I have the thermostat set to AC with auto fan or when I am just running FAN ONLY.

    Any suggestions would be appreciated.

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