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    hkarnes's Avatar
    hkarnes Posts: 2, Reputation: 1
    New Member
    		  
    #1

    Dec 14, 2007, 06:50 PM
    Furnace blower
    I have an intertherm central air/heat unit. The ac works fine. All of a sudden today the heater will come on but the fan won't blow. If I turn it on run the fan does, but on auto it doesn't. It still works fine when the ac unit is on.
    hvac1000's Avatar
    hvac1000 Posts: 14,540, Reputation: 435
    Heating & Air Conditioning Expert
    		  
    #2

    Dec 14, 2007, 11:05 PM
    The fan control is defective. Post the exact model number of your furnace.
    hkarnes's Avatar
    hkarnes Posts: 2, Reputation: 1
    New Member
    		  
    #3

    Dec 26, 2007, 09:28 PM
    Turned out to be a sequencer was going bad on the heater unit. Replaced it and now it is running fine. Thanks for your advice.
    hvac1000's Avatar
    hvac1000 Posts: 14,540, Reputation: 435
    Heating & Air Conditioning Expert
    		  
    #4

    Dec 26, 2007, 09:32 PM
    Cool the heat sequencer is actually the fan control on most models of intertherm
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