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    SARAH33's Avatar
    SARAH33 Posts: 1, Reputation: 1
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    #1

    Aug 28, 2008, 06:32 PM
    How to get a bryant thermostat running again
    I have a digital thermostat bryant and the screen went blank how do I fix it its for a air conditioner
    hvac1000's Avatar
    hvac1000 Posts: 14,540, Reputation: 435
    Heating & Air Conditioning Expert
    		  
    #2

    Aug 28, 2008, 06:51 PM
    Check the batterys
    Check the 24 volt control circuit/transformer.
    T-Top's Avatar
    T-Top Posts: 1,871, Reputation: 100
    Ultra Member
    		  
    #3

    Aug 28, 2008, 07:28 PM
    If you don't have 24 volts its not going to work. Check your breakers going to the blower section(gas heat or furnace)If you don't have line voltage you won't have secondary voltage. The bryant units have a low voltage fuse on the control board that can blow to protect the board(simple automotive fuse). It kills 24 volts to the system. If its blown you can replace it with the 5 amp fuse, if it blows again it time to find out why.
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