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    dcoggs3's Avatar
    dcoggs3 Posts: 7, Reputation: 1
    New Member
    		  
    #1

    Nov 8, 2010, 05:15 PM
    American standard furnace gas valve will not open
    mygirlsdad77's Avatar
    mygirlsdad77 Posts: 5,713, Reputation: 339
    Plumbing Expert
    		  
    #2

    Nov 8, 2010, 05:28 PM

    Is it getting correct voltage when it should be opening?
    dcoggs3's Avatar
    dcoggs3 Posts: 7, Reputation: 1
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    #3

    Nov 8, 2010, 05:32 PM
    Comment on mygirlsdad77's post
    Yes the gas valve receives 24v for abot 2 seconds then nothing
    ivanh's Avatar
    ivanh Posts: 52, Reputation: 3
    Junior Member
    		  
    #4

    Nov 8, 2010, 07:42 PM
    Comment on mygirlsdad77's post
    Check electrical polarity of power wiring to furnace. Some newer units will turn into a pumpkin if the a/c power polarity is not correct. Just reverse hot/neutal wires. Usually get trouble flash on mother board also.
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