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  1. #14
    Join Date
    Jun 2009
    Posts
    7

    Looking for answers

    Thanks for all the great comments and advice. I did get a hold of an American Standard Rep. He knows the installer. He is going to get with him to get all the info on the repair work. He was telling me that they have had similar problem in Seguin TX because of sulfure. Most of south Texas has sulfer in the water. The curious thing here would be there are 4 houses here, all have central air units. The other 3 are less than 3 years old, and none have ever had any problems at all. They too are all American Standard units, the only difference is they all use the R-22 refrigerant. Mine the one with all the leaks uses the R-410a. I will update as soon as hear from the rep.

  2. #15
    Join Date
    Dec 2004
    Location
    newton,mass.
    Posts
    6,109
    Quote Originally Posted by paulc7 View Post
    Thanks for all the great comments and advice. I did get a hold of an American Standard Rep. He knows the installer. He is going to get with him to get all the info on the repair work. He was telling me that they have had similar problem in Seguin TX because of sulfure. Most of south Texas has sulfer in the water. The curious thing here would be there are 4 houses here, all have central air units. The other 3 are less than 3 years old, and none have ever had any problems at all. They too are all American Standard units, the only difference is they all use the R-22 refrigerant. Mine the one with all the leaks uses the R-410a. I will update as soon as hear from the rep.

    Thanks for getting back to us ... I am very interested in what the cause is, so please let us know ...

    .
    "Nothing else can poison our culture, corrupt our society or ruin the character of our people like unearned money or unearned opportunity." -- James R. Cook

    "Fooling around with alternating current is just a waste of time. Nobody will use it, ever." Thomas Edison, 1889.

  3. #16
    Join Date
    Feb 2007
    Location
    out in the country
    Posts
    633
    Quote Originally Posted by paulc7 View Post
    I was hoping someone might have an ansewer to a problem I'm having with an American Standard coil. The coil to this unit has been replaced 6 times and is needing to be replaced again. Thank goodness for the extended warranty. My A/C man tells me that he doesn't know what is causing the failures with each one but they all develope leaks in less than a year. We live in Pleasanton Texas. We are just your average family with no use of anything I can think of that might cause this thing to keep failing. It is a 3.5 ton heat pump unit with the air handler in the attick. The unit is now 8 years old and I think must be a lemon. It was one of American Standards fancier units when we purchased it. I would appriciate any input. Thanks.

    Are they actually proving that the coils are developing leaks? What methods are they using? ....Maybe the leak is elsewhere
    I never let schooling interfere with my education... Mark Twain

  4. #17
    Join Date
    Dec 2007
    Location
    Ohio
    Posts
    2,875
    Quote Originally Posted by ISOTHERMAL View Post
    Are they actually proving that the coils are developing leaks? What methods are they using? ....Maybe the leak is elsewhere
    That's what I am thinking too......

    I hope this dude keeps us posted on the outcome......
    I need a new signature.....

  5. #18
    Join Date
    Aug 2007
    Location
    Clearwater, Fl
    Posts
    358
    American Standard/Trane has a program in place for extended warranty evaporator coil replacements. Any evap coil, regardless of age that is replaced under extended warranty gets sent to the factory to be tested.

    If they cannot confirm the techs diagnosis the warranty claim is not paid, and the contractor eats the complete cost of the work performed and materials used, including the coil.

    I don't think that many coils will be sent back without the contractor being absolutely sure the problem was properly diagnosed.
    If people only focused on the important things in life there would be a shortage of fishing poles.

  6. #19
    Join Date
    Apr 2008
    Location
    Pluto
    Posts
    983
    Off topic, but I have to ask it. What is an ansewer?

    By the way, I work for a company that sells Trane as it's primary system, and I have come across quite a few of them that had leaks. Maybe about 5 or 6 in the past 2 years, but it does happen. However, 6 times in a row? That's just preposterous.
    Not as lean, not as mean, but I'm still a hardcore, ass-kicking, hard charging Marine! Oohrah!

  7. #20
    Join Date
    Jun 2009
    Posts
    7
    Hi Everyone,

    To reinterate from the last time. I talked to the factory rep,(Stuart), at American Standard. We went trough the whole thing about the sulfur in the area and all. He mentioned "Sick building syndom" and that they really don't know what is causing the failures of the evaporator coil. I checked the Chinese sheetrock theory. That as with sulfur will turn the copper black. Thats not the problem because the copper is pristine. Long story short, they came in and replaced another coil at the end of June. It too has since failed. This one in just 4 months. The installer who has an excellent reputation and American Standard swears by him, says there is no indicatiion of any corrosionon the coil. It will develope these leaks that are just a pin hole, and I think he told me usually only one. He thinks it is some kind of chemcal reaction to something in the house. I tend to disagree. I have gone through the house and cannot identify anything that is uncommon to other households. I'm certainly not an expert in this matter, but is it possible there might be some sort of electrolysis? There is no problem with the refigerators in the house, just the A/C unit. I'm wondering too, if just simply replacing the intire unit wouldn't solve this dilemma. Since there is no indication of corrosion, maybe its something wrong with the unit itself? I would appriciate all of you thoughts once again, and thanks so much. Paul S Cardwell

  8. #21
    Join Date
    May 2007
    Location
    Dry as a bone Tucson
    Posts
    4,301

    the unit itself?

    Quote Originally Posted by paulc7 View Post
    Hi Everyone,

    To reinterate from the last time. I talked to the factory rep,(Stuart), at American Standard. We went trough the whole thing about the sulfur in the area and all. He mentioned "Sick building syndom" and that they really don't know what is causing the failures of the evaporator coil. I checked the Chinese sheetrock theory. That as with sulfur will turn the copper black. Thats not the problem because the copper is pristine. Long story short, they came in and replaced another coil at the end of June. It too has since failed. This one in just 4 months. The installer who has an excellent reputation and American Standard swears by him, says there is no indicatiion of any corrosionon the coil. It will develope these leaks that are just a pin hole, and I think he told me usually only one. He thinks it is some kind of chemcal reaction to something in the house. I tend to disagree. I have gone through the house and cannot identify anything that is uncommon to other households. I'm certainly not an expert in this matter, but is it possible there might be some sort of electrolysis? There is no problem with the refigerators in the house, just the A/C unit. I'm wondering too, if just simply replacing the intire unit wouldn't solve this dilemma. Since there is no indication of corrosion, maybe its something wrong with the unit itself? I would appriciate all of you thoughts once again, and thanks so much. Paul S Cardwell

    The coil is a seperate item than the rest of the unit. which is only a sheetmetal box with a fan.This would not do any thing. I would strongly recommend inspecting your return duct and your filter set up. Is your filter rack seperate from the unit?
    Some Talk, Some Do
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  9. #22
    Join Date
    Mar 2005
    Location
    Houston, Texas
    Posts
    11,863
    What's gonna happen when the warranty expires?


    Had to add this.

    http://news.yahoo.com/s/ap/20091015/...hinese_drywall

  10. #23
    Join Date
    Aug 2007
    Location
    Clearwater, Fl
    Posts
    358
    Last month we replaced the third coil on a system that was installed in 2005. Coil # 4 is an epoxy coated coil that was supplied to us by Trane and should eliminate this issue if it is a problem with the exterior of the coil. It does raise another issue of possible increased mold growth on the coil though. We will have to wait and see how this coil works.

    You may ask about a coated coil to protect the surface area from anything that may be in the home.

    I have also heard rumor of a full aluminum coil becoming available in the first qtr of 2010.
    If people only focused on the important things in life there would be a shortage of fishing poles.

  11. #24
    Join Date
    Jun 2009
    Posts
    7
    forcryinoutloud,
    Thats interesting. You know a few years ago they did install one that was coated. I don't know what it was coated with though. I'm sure it must have been the same thing. It too developed a leak after about 9 months. Wouldn't this indicate that there must be some sort of internal problem? I mean the coating is applied to protect the copper and aluminum from corrosives. So what ever is eating at this is not selective at whether it is copper, aluminum, or even epoxy. I would think it that it must be caused from the inside out?

  12. #25
    Join Date
    Jun 2009
    Posts
    7
    The Filter is located directly in front of the main unit. This unit is in the attic, so the return air duct comes in from two smaller loctions, and one large one directly under the unit on the ceiling. The filter is behind a door you remove to slide the filter out, a somewhat large filter, about 24x24x8. When I change it, I can see the coil. you know provided you shine a flash light in there.

  13. #26
    Join Date
    Feb 2004
    Location
    SC
    Posts
    20,677
    Change hairspray or cooking oil or get rid of the dog. Ya gotta change the contributions to the formic acid.
    No reserve. No retreat. No regrets.

    For those who have fought for it, freedom has a sweetness the protected will never know.

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    Proud member of KA Club

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