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    Rory57's Avatar
    Rory57 Posts: 1, Reputation: 1
    New Member
    		  
    #1

    Nov 9, 2007, 09:18 AM
    Furnace blower(fan)
    Hi my furnce starts but the fan( blower) won't kick in would it be a limit switch
    hvac1000's Avatar
    hvac1000 Posts: 14,540, Reputation: 435
    Heating & Air Conditioning Expert
    		  
    #2

    Nov 9, 2007, 04:23 PM
    It could be a limit switch. It could be the fan and limit switch combo.
    It could be the motor for the fan also.
    labman's Avatar
    labman Posts: 10,580, Reputation: 551
    Uber Member
    		  
    #3

    Nov 9, 2007, 08:44 PM
    Your newer furnaces have all the fan controls including the relay for the fan on a very expensive circuit board. Such furnaces usually have an LED that flashes a code identifying the problem.
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