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

    Oct 4, 2008, 06:29 AM
    Goodman furnace
    Goodman furnace circuit board has heat and cool. No wires to heat but wires to cool. Is there sopposed be a wire from fan to heat? Just installed new fan and a/c works, just tried to turn on the heat and it went on for a while than shut off. What's up with that? Please help...
    Clough's Avatar
    Clough Posts: 26,677, Reputation: 1649
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    #2

    Oct 5, 2008, 01:47 AM

    Hi, jochrs!

    Until someone comes along to personally address your question, you might want to click on the links at the bottom of this page to see if there might be some information on them that would be helpful to you.

    Thanks!
    MarkwithaK's Avatar
    MarkwithaK Posts: 955, Reputation: 107
    Senior Member
    		  
    #3

    Oct 5, 2008, 08:54 AM

    Sounds like maybe the wire for the fan isn't connected to the terminal. Most blower motors will USUALLY have 3 speeds (low, medium, high) and some will have 4 speeds with the extra speed being an intermediate (medium-low or medium-high). Generally the low speed will be used for heat but not in every case. There are instances when I will use high speed for both cooling and heating. It all depends on the heat rise across the exchanger.
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