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  1. #14
    Join Date
    Feb 2008
    Posts
    14
    One pipe system going thru roof with 2'' pvc. No obstructions at all. Taking air from crawl space. Talked to tech at goodman and he said that the switch trips at 200f. Put a temp probe near the switch and it tripped at 197f after running for 10 minutes. Unit was converted to propane.

  2. #15
    Join Date
    Jan 2011
    Location
    Cincinnati Ohio
    Posts
    21
    Couple of questions: how big is the furnace? How big is the crawl? Is the crawl sealed up tight or vented to the outside?

    Sent from my Nexus 7 using Tapatalk 2

  3. #16
    Join Date
    Feb 2008
    Posts
    14
    70 thou btu. Crawl space is 30 by 40 feet 32 inches high and vented.

  4. #17
    Join Date
    Jul 2010
    Location
    nebraska
    Posts
    1,629
    Check the level of the furnace. Kind of sounds like your secondary exchanger is building up some water after several minutes of run time.

  5. #18
    Join Date
    Feb 2008
    Posts
    14
    Thanks, I do believe that the other contractors did some jacking on the house.

  6. #19
    Join Date
    Feb 2008
    Posts
    14
    Want to thank martyinlincoln for the info on the leveling of the furnace. Did the trick. You rock!!!!!!

  7. #20
    Join Date
    Jan 2011
    Location
    Cincinnati Ohio
    Posts
    21
    Glad you got it knocked out.

    Sent from my Nexus 7 using Tapatalk 2

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