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

    Oct 28, 2009, 11:49 AM
    Goodman gmp125-5 motherboard shorts
    I have a Goodman furance that I have replaced the motherboard 3 times they last about 6 months. Every time it happens the board blinks 3 times which means a vent issue but when I check the switch current its correct. We do have power outages. I also noticed some discoloring were the plug(runs from board to a pigtail then to the sensors) fits to the side of the board. I'm tired of the tech coming out and saying I need a new board not sure why it blows.
    hvac1000's Avatar
    hvac1000 Posts: 14,540, Reputation: 435
    Heating & Air Conditioning Expert
    		  
    #2

    Oct 28, 2009, 12:45 PM
    You better be putting a shunt/surge device on your main electric power line since it seems to be causing most of your problems. Discolored wires mean a loose fit or bad connector and that also needs to be fixed.
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