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  1. #14
    Join Date
    Mar 2008
    Location
    Spartanburg/Greenville South Carolina
    Posts
    134
    can we say lack of air flow check filters id do a new furnance

  2. #15
    Join Date
    Mar 2005
    Location
    burlington county n.j.
    Posts
    9,723
    Quote Originally Posted by james mo View Post
    Replace the ignition control with a universal module, but find out what happened to that lennox heat exchanger before you put another one in. I just don't see them that bad unless there is a serious problem

    probably don't normally see them that bad because the rollout is usually not bypassed.

    at least its an easy hx to change out.

  3. #16
    Join Date
    Jan 2010
    Location
    Levittown, PA
    Posts
    8

    Lennox, Carrier, and York

    Lennox, Carrier, and York commercial heat exchangers come with a 5 to 7 yr warranty. Make sure to check them at about the 7 yr mark. It's almost a sure thing that there will be pin holes starting to form. Check especially at the bottom turn and along the welded seams.

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