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    engjon510's Avatar
    engjon510 Posts: 2, Reputation: 1
    New Member
    		  
    #1

    Jun 7, 2009, 02:58 PM
    AC Wiring issue (Carrier Weathermaker 8000 24v error code)
    I have a Carrier Weathermaker 8000 furnace, which I just had the Control Board changed. Tried turning on the AC and nothing. Get the 24 error code which is 24 volt short. Keeps blowing the 3 amp fuse. Have replaced the wires from the Condenser to the control board. If I remove the wires from the board and turn on the heat, it runs. Turn on the AC with the wires off, fuse blows. Any help would be greatly appreciated!
    engjon510's Avatar
    engjon510 Posts: 2, Reputation: 1
    New Member
    		  
    #2

    Jun 7, 2009, 03:01 PM

    Oh and I have done a visual on all the control wires and do not see a short.
    Joshdta's Avatar
    Joshdta Posts: 2,549, Reputation: 45
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    #3

    Jun 7, 2009, 04:29 PM

    Fuse blows with the wire unhooked at the ac unit?
    mygirlsdad77's Avatar
    mygirlsdad77 Posts: 5,713, Reputation: 339
    Plumbing Expert
    		  
    #4

    Jun 7, 2009, 06:08 PM

    If fuse blows with wires disconnected from ac unit, it sounds like you have a short in thermostat wires from thermostat to board on furnace. Or, new board was inproperly wired.
    T-Top's Avatar
    T-Top Posts: 1,871, Reputation: 100
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    #5

    Jun 7, 2009, 07:28 PM
    Check for a low voltage short inside the A/C unit: Wires going to the high pressure or low pressure switch. A coil that is bad on the contactor will give the same symptom.
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