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

    Oct 15, 2008, 09:14 AM
    Heating A/C Thermostat screen is blank
    What are the most common causes of a thermostat screen being blank? House is only 3 years old and I believe the thermostat is a digital unit.
    hvac1000's Avatar
    hvac1000 Posts: 14,540, Reputation: 435
    Heating & Air Conditioning Expert
     
    #2

    Oct 15, 2008, 09:37 AM
    Blown transforner
    Blown fuse
    Bad batterys
    Power turned off to furnace
    Defective thermostat

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