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    MarkwithaK's Avatar
    MarkwithaK Posts: 955, Reputation: 107
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    #41

    Nov 25, 2008, 09:05 PM

    Well then you probably eliminated that.
    novice68's Avatar
    novice68 Posts: 22, Reputation: 1
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    #42

    Nov 25, 2008, 09:11 PM

    Any further suggestion?
    novice68's Avatar
    novice68 Posts: 22, Reputation: 1
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    #43

    Nov 26, 2008, 06:17 AM

    If the current is not flowing to the gas valve, does this mean the circuit board has gone bad and is preventing the current to flow to gas valve? Or is it something else?
    What should be the next step from here?
    mygirlsdad77's Avatar
    mygirlsdad77 Posts: 5,713, Reputation: 339
    Plumbing Expert
    		  
    #44

    Nov 27, 2008, 04:18 PM
    Quote Originally Posted by novice68 View Post
    If there is no voltage at the gas valve (I guess this is the pressure switch) would pulling wire and putting it back make any difference?
    No, the pressure switch and the gas valve are two entirely different devices. Follow wires back from gas valve and see if they go though any other switches before getting to the board.
    novice68's Avatar
    novice68 Posts: 22, Reputation: 1
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    #45

    Nov 27, 2008, 08:09 PM

    No. the wires are going directly to the circuit board.:confused:
    T-Top's Avatar
    T-Top Posts: 1,871, Reputation: 100
    Ultra Member
    		  
    #46

    Nov 28, 2008, 06:36 PM
    If the ignitor is glowing all is good as far as limits and switches. The gas valve will only get 24v for three seconds after the hot surface ignitor is glowing. If you do not get 24v to the gas valve at any time with the ignitor glowing you got a bad board.
    novice68's Avatar
    novice68 Posts: 22, Reputation: 1
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    #47

    Dec 1, 2008, 02:57 PM

    Where can I get my hands on the board? Where would I find the part number for it?
    mygirlsdad77's Avatar
    mygirlsdad77 Posts: 5,713, Reputation: 339
    Plumbing Expert
    		  
    #48

    Dec 1, 2008, 04:18 PM

    You can either order it online at a carrier site, or go to a local heating contractor/ parts store. All you will need is the model and serial number of the furnace. Good luck and let us know if it solves your problem, sounds like it's a pretty good chance it will.
    MarkwithaK's Avatar
    MarkwithaK Posts: 955, Reputation: 107
    Senior Member
    		  
    #49

    Dec 1, 2008, 07:09 PM

    Good luck getting a HVAC/R supplier to sell to you directly. Many will not.
    litefog's Avatar
    litefog Posts: 4, Reputation: 1
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    #50

    Dec 1, 2008, 08:35 PM
    If you need help finding a supplier, I can provide you with a couple of internet sellers that I've experienced 1st hand with good success. PM me if interested. Just be absolutely sure you order the correct part as there are no returns. Look for the part number printed on your old board and use it to find the correct Carrier board. They are often superseded by a new part number. Let us know how it turns out. Follow-up is key to helping others.
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