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  1. #1
    Join Date
    Apr 2008
    Location
    Greenwood Lake, ny
    Posts
    49

    Cracked heat exchanger

    What other way is there to check for bad exchanger
    besides a visual inspection.

  2. #2
    Join Date
    Feb 2007
    Location
    18951
    Posts
    1,593
    Quote Originally Posted by ktw129 View Post
    What other way is there to check for bad exchanger
    besides a visual inspection.
    What make and model heater? What kind of fuel?

  3. #3
    Join Date
    Feb 2008
    Location
    lugoff southcarolina
    Posts
    11

    Smile

    visual check on heat exchanger is the proper way to check

  4. #4
    Join Date
    Dec 2002
    Location
    Toledo, Ohio, United States
    Posts
    12,910
    Twilli closes his eyes and feels for cracks
    No Heat No Cool You need Action Fast

  5. #5
    Where I work we do a penatration test. This requires you to remove the blower. Inspect the heat exchanger before, look for protenial spots. Then squirt water on the Heat Exchanger form the bottom. Get it wet as possible. Then inspect again, if wets form on inside of heat exchanger you got cracks. Another test is the smoke test. They make a smoe bomb that you light off in your heat exchanger then turn on the blower and if you get any smoke out of vents you got cracks in your heat exchanger.

  6. #6
    Join Date
    Mar 2005
    Location
    Suppy NC
    Posts
    4,513
    Quote Originally Posted by twilli3967 View Post
    Twilli closes his eyes and feels for cracks

    I find it more fun this way to

  7. #7
    Join Date
    Dec 2002
    Location
    Toledo, Ohio, United States
    Posts
    12,910
    Twilli still wants to know what kind of test can you do, without visually seeing the test result, and what test is better than seeing the crack, other than of course touching and feeling the crack
    No Heat No Cool You need Action Fast

  8. #8
    Join Date
    Dec 2002
    Location
    Houston,Tx.
    Posts
    15,939
    Quote Originally Posted by twilli3967 View Post
    Twilli still wants to know what kind of test can you do, without visually seeing the test result, and what test is better than seeing the crack, other than of course touching and feeling the crack

    Mr. Bill gets all the help he needs, I just stop by the local Stop and Buy and tell the Brothers I am about to go look for a crack in an HX and they all jump in the back of my truck.
    __________________________________________________ _______________________
    “Experience is a hard teacher because she gives the test first, the lesson afterwards". - Vernon Law

    "Never let success go to your head, and never let failure go to your heart". - Unknown

  9. #9
    Join Date
    Feb 2008
    Location
    lugoff southcarolina
    Posts
    11
    twilli cabonmonoxide test

  10. #10
    Join Date
    Mar 2005
    Location
    Suppy NC
    Posts
    4,513
    if you can see the crack then what more is need to find it
    the crack is there if you can see it

  11. #11
    Join Date
    Mar 2004
    Location
    Illinois
    Posts
    6,959

    Anyone care...

    to give the op some real answers

  12. #12
    Join Date
    May 2007
    Location
    somewhere between heaven and hell
    Posts
    957
    Quote Originally Posted by ktw129 View Post
    What other way is there to check for bad exchanger
    besides a visual inspection.
    I use a scope but the scope still cannot get in some places so in that case I either pull the blower whether it is downflow or upflow and look inside with a flash light or if upflow and if I can take the spacer from the a coil I look down that way also then do what twilli does.

  13. #13
    Join Date
    May 2007
    Location
    somewhere between heaven and hell
    Posts
    957
    If you have combustion analyser and do a orsat test you can sometimes detect a crack that way also

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