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    monika khadjehnouri's Avatar
    monika khadjehnouri Posts: 1, Reputation: 1
    New Member
    		  
    #1

    Jan 25, 2008, 08:58 PM
    Keeps blowing 3 Amp Fuse on Control Panel.
    I Have A Carrier (58gsc)upflow Furnace & A/c Unit, Which Is 18 Years Old.
    When I Tried To Turn The Heater On , Only Blower Came On & Would Not Turn Off Unless Disconnected From Electricity.
    Replaced Sofar Control Unit, Thermostat,transformer Was Blown,& Finally The Limit Switch.
    When I Disconnect The Limit Switch The Fuse On Control Unit Will Not Blow.
    I Tried Disconnecting Wires One By One ,the 3 Amp Fuse Kepps Blowing, Only With Limit Switch Wire Disconnected It Stops Blowing The Fuse.

    Please If Any Body Can Help, Give Advise. Thanks
    cgregory67's Avatar
    cgregory67 Posts: 92, Reputation: 7
    Junior Member
    		  
    #2

    Jan 25, 2008, 09:47 PM
    C= Common
    Y= Cooling
    GC= Fan Cooling
    GH = Fan heating
    R= Power
    W = Heating

    http://www.xpedio.carrier.com/idc/gr...58dfa-13si.pdf
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