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

    Dec 1, 2009, 12:45 PM
    Carrier furnace fault 12
    What does R-W closed mean(under fault 12)
    hvac1000's Avatar
    hvac1000 Posts: 14,540, Reputation: 435
    Heating & Air Conditioning Expert
    		  
    #2

    Dec 1, 2009, 01:06 PM
    R and W are the wires that cause a call for heat.
    StructureDesign's Avatar
    StructureDesign Posts: 1, Reputation: 1
    New Member
    		  
    #3

    Nov 2, 2010, 02:15 PM
    I have this problem going on right now with my furnace. So what does this mean and how does it get fixed?
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