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

    Jun 22, 2010, 05:18 AM
    Heil furnace
    Fan runs even with the t-stat off
    hvac1000's Avatar
    hvac1000 Posts: 14,540, Reputation: 435
    Heating & Air Conditioning Expert
    		  
    #2

    Jun 22, 2010, 02:19 PM
    Burnt or stuck contacts in fan relay OR low voltage control wire shorted.
    junkin's Avatar
    junkin Posts: 2, Reputation: 1
    New Member
    		  
    #3

    Jul 10, 2010, 01:51 PM
    You may have the selector switch in the thermostat to on try it in auto!
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