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  1. #1
    Join Date
    Nov 2008
    Location
    DFW,TX
    Posts
    2,170

    Testo 550 repairs/parts ??

    Ok so i have been using the 550 for a few yrs now and its working fine but recently the Highside knob on the manifold leaks refer when i use it but stops if i fiddle with it.

    I imagine i need to replace/rebuild the valves?? so do they have a replacement or is it as simple as taking them apart and replacing some O-rings?

    anybody who has done this walk me through the procedure, thanks

    oh and i need yet another hanger hook, arghh..i hope they get a different type soon..

    i have my DC 1250s to use in the short term so not worried! :P

  2. #2
    Join Date
    Nov 2008
    Location
    DFW,TX
    Posts
    2,170
    ?? anybody?

  3. #3
    Join Date
    Dec 2008
    Location
    Buffalo NY
    Posts
    3,082
    I have been using mine with no issues. Call true tech tools or Testo and see what they say.


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  4. #4
    Join Date
    Jan 2005
    Location
    Akron
    Posts
    1,126
    Quote Originally Posted by acguytx View Post
    Ok so i have been using the 550 for a few yrs now and its working fine but recently the Highside knob on the manifold leaks refer when i use it but stops if i fiddle with it.

    I imagine i need to replace/rebuild the valves?? so do they have a replacement or is it as simple as taking them apart and replacing some O-rings?

    anybody who has done this walk me through the procedure, thanks

    oh and i need yet another hanger hook, arghh..i hope they get a different type soon..

    i have my DC 1250s to use in the short term so not worried! :P
    The valves have to be torqued to very specific requirements and the instrument leak checked after it is repaired. It will need to be returned to Testo for service.

    Testo, Inc.
    40 White Lake Road
    Sparta, NJ 07871
    Attn: Service

    Make sure to include a phone number and return address on a separate card.
    JLB,

  5. #5
    Join Date
    Nov 2008
    Location
    DFW,TX
    Posts
    2,170
    Quote Originally Posted by jim bergmann View Post
    The valves have to be torqued to very specific requirements and the instrument leak checked after it is repaired. It will need to be returned to Testo for service.

    Testo, Inc.
    40 White Lake Road
    Sparta, NJ 07871



    Attn: Service

    Make sure to include a phone number and return address on a separate card.
    how long was the warrnaty on this product and and estimate of shipping and repairs?

    might not be worth fixing if the cost is more then half of what i paid for it??

  6. #6
    Join Date
    Jan 2005
    Location
    Akron
    Posts
    1,126
    2 years from date of purchase. Not sure of the cost. You will have to ask them.
    JLB,

  7. #7
    Join Date
    Nov 2008
    Location
    DFW,TX
    Posts
    2,170
    Quote Originally Posted by jim bergmann View Post
    2 years from date of purchase. Not sure of the cost. You will have to ask them.
    do you have a number to their service department? thanks

  8. #8
    Join Date
    Aug 2004
    Location
    North Richland Hills, Texas
    Posts
    14,914
    Quote Originally Posted by jim bergmann View Post
    The valves have to be torqued to very specific requirements and the instrument leak checked after it is repaired.
    They always say that, but most of us are smart enough to figure out how to tighten a valve enough to keep it from leaking, without stripping the thread in the aluminum block.
    If more government is the answer, then it's a really stupid question.

  9. #9
    Join Date
    Dec 2003
    Location
    Citrus County, Florida
    Posts
    1,519
    just went thru the same repair...It cost $56.00 including return shipping.
    Doug

  10. #10
    Join Date
    Jul 2012
    Location
    Cincinnati ohio
    Posts
    252
    I literally mailed mine out a few hours ago because my high side knob was leaking. It started leaking for no apparent reason, wasn't bumped or even turned. Mine are less than a year old.

  11. #11
    Join Date
    Mar 2007
    Location
    wedged in freezer shelf
    Posts
    6,668
    So at the cost of a new manifold you could get yours repaired
    “If You Can Dodge A Wrench You Can Dodge A Ball”

  12. #12
    Join Date
    May 2009
    Location
    Savannah, Ga/H.H. Island, S.C.
    Posts
    1,458
    Quote Originally Posted by acguytx View Post
    oh and i need yet another hanger hook, arghh..i hope they get a different type soon...
    I'm in my third hook. This is the only issue I've had with the 550's. I was looking at the 557's the other day and they come with a heavier duty hook. It may be because the 557's weigh more but I can only hope they wise up and start using those on the 550's.

  13. #13
    Join Date
    Jan 2005
    Location
    Akron
    Posts
    1,126
    Testo Inc. 800-227-0729
    JLB,

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