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    lotmo's Avatar
    lotmo Posts: 3, Reputation: 1
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    #1

    Jul 21, 2010, 07:09 AM
    Can someone assist me in locating a wiring diagram for a lennox furnace circa1980
    The unit is not properly wired between the fan control center and the limit switch the t/stat is not in the loop because the only way to cut the unit on is to activate the wall switch for the fan blower
    wmproop's Avatar
    wmproop Posts: 3,749, Reputation: 91
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    #2

    Jul 21, 2010, 08:02 AM

    Not without a model number,sorry,if the fan center is an add on not factory equipment the furnace wireing diagram want help much
    lotmo's Avatar
    lotmo Posts: 3, Reputation: 1
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    #3

    Jul 21, 2010, 12:40 PM

    To wmproop; the model number isG12D2-82 THE SERIAL# IS5873C
    wmproop's Avatar
    wmproop Posts: 3,749, Reputation: 91
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    #4

    Jul 21, 2010, 01:08 PM

    I googled the model number,but it wouldn`t let me transfer,must be a lennox thing
    Try it yourself
    hvac1000's Avatar
    hvac1000 Posts: 14,540, Reputation: 435
    Heating & Air Conditioning Expert
    		  
    #5

    Jul 21, 2010, 01:45 PM
    Quote Originally Posted by lotmo View Post
    the unit is not properly wired between the fan control center and the limit switch the t/stat is not in the loop because the only way to cut the unit on is to activate the wall switch for the fan blower
    See this link on this site


    https://www.askmehelpdesk.com/heatin...-a-435529.html
    wmproop's Avatar
    wmproop Posts: 3,749, Reputation: 91
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    #6

    Jul 21, 2010, 01:45 PM

    I googled it but couldn`t get it to allow me to transfer

    Try Google the model number
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