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    Irish Shop's Avatar
    Irish Shop Posts: 1, Reputation: 1
    New Member
    		  
    #1

    Nov 10, 2008, 09:18 AM
    Furnace won't blow hot air - Pressure Draft safeguard
    What is this error code about? It says "Pressure draft safeguard auxiliary limit (when used) OR blocked vent shut off (when used). Switch did not close or re-open.

    Does anyone know what needs done to correct this?

    Thank you
    hvac1000's Avatar
    hvac1000 Posts: 14,540, Reputation: 435
    Heating & Air Conditioning Expert
    		  
    #2

    Nov 10, 2008, 02:47 PM
    Brand and exact model of unit? Or should I use my crystal ball.
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