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  1. #1
    Join Date
    Oct 2005
    Location
    Oregon
    Posts
    94
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    Something didn't seem right......

    The customer just bought the house six months prior and told me that the previous owner had nothing but problems with the heatpump from day one. Technicians would come out and remove refrigerant every winter and add refrigerant every summer. I went inside and checked the 20x20x1 filter inside the filter grill located in the hallway. When I opened the filter grill the filter just fell out. I went into the attic and disconnected the KD return duct to find this........

    The previous owner ran this system for 12 years like this. I wouldn't doubt it if they sold the house because their heating and A/C didn't work.





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    "Pea-Corn and Pop-Nuts"

  2. #2
    Join Date
    Feb 2018
    Location
    Bay Area, Ca
    Posts
    428
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    Wow. Just wow. Great find. So simple yet you look like einstein compared to the previous people.

    Sent from my SM-N960U using Tapatalk

  3. #3
    Join Date
    Sep 2002
    Location
    Virginia
    Posts
    6,462
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    Whats the problem ..... you've never seen duct insulated on the inside before ??

  4. #4
    Join Date
    Sep 2002
    Location
    Virginia
    Posts
    6,462
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    6 inch insulation .... that bad boy will never sweat

  5. #5
    Join Date
    Nov 2011
    Location
    East Side
    Posts
    6,712
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    pissed off installer maybe?

  6. #6
    Join Date
    Oct 2005
    Location
    Oregon
    Posts
    94
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    Thread Starter
    I'll tell you what, the service call couldn't have gone any smoother. I am not saying that I am some kind of super tech or anything but I listened to what the customer was telling me about the history of the system and checked the basic vital signs. One of the things I have been noticing more and more lately when I show up to a service call is that there are no holes in the supply and return plenum where temperatures have been taken. You can always get your Delta T from the return grill and a supply register but taking your readings right before and after the FAU can give you a more accurate measurement. Sometimes I see where the tech before took the time to seal the holes used to take the readings but most of the time they are left open. The one thing I almost never see on service calls are holes made in the plenums large enough to take static pressure readings. Static pressure readings are as simple to take as taking temperature reading and can tell you a lot about why the system is not working properly. Case in point.....

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    This customers system is around twenty years old, the original system from when the house was built. The customer said that the system was working great and always has. My static pressure readings indicated a problem. Cut into the exposed return plenum in the garage and discovered that the return plenum used the space between the upstairs and downstairs as a duct and then shot straight up through a chase to the upstairs where the return air filter grill was installed.

    Ok. That was supposed to be a short response, HaHa
    "Pea-Corn and Pop-Nuts"

  7. #7
    Join Date
    Mar 2015
    Location
    Hamersville, Ohio
    Posts
    7,281
    Post Likes
    Quote Originally Posted by napoleon-dynomite View Post
    I'll tell you what, the service call couldn't have gone any smoother. I am not saying that I am some kind of super tech or anything but I listened to what the customer was telling me about the history of the system and checked the basic vital signs. One of the things I have been noticing more and more lately when I show up to a service call is that there are no holes in the supply and return plenum where temperatures have been taken. You can always get your Delta T from the return grill and a supply register but taking your readings right before and after the FAU can give you a more accurate measurement. Sometimes I see where the tech before took the time to seal the holes used to take the readings but most of the time they are left open. The one thing I almost never see on service calls are holes made in the plenums large enough to take static pressure readings. Static pressure readings are as simple to take as taking temperature reading and can tell you a lot about why the system is not working properly. Case in point.....

    Name:  15649763587181.jpg
Views: 1940
Size:  68.0 KB


    This customers system is around twenty years old, the original system from when the house was built. The customer said that the system was working great and always has. My static pressure readings indicated a problem. Cut into the exposed return plenum in the garage and discovered that the return plenum used the space between the upstairs and downstairs as a duct and then shot straight up through a chase to the upstairs where the return air filter grill was installed.

    Ok. That was supposed to be a short response, HaHa
    What did You do to correct that problem Napoleon?
    Hos 4:6 My people are destroyed for lack of knowledge. Because you have rejected knowledge, I will also reject you, that you may be no priest to me. Because you have forgotten your God’s law, I will also forget your children.


    "You've got to Stand for Something or You'll fall for anything" (A. Tippin)


    Mat_15:24 But he answered, “I wasn’t sent to anyone but the lost sheep of the house of Israel.”

  8. #8
    Join Date
    Oct 2005
    Location
    Oregon
    Posts
    94
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    Thread Starter
    Those two pieces of insulation pulled right out and problem solved. One of the reasons this customer called our company in the first place was that the previous company told him that the system needed to be replaced. I would have a hard time telling a customer this without first taking all the necessary reading to properly diagnose the system. One of the most satisfying parts of being a service tech is figuring out why things aren't working as they should. Unfortunately there are calls that still have me wondering what the hell happened.........Like this call. The fire dept. was called out and the neighbors reported that it sounded like a bomb went off.......



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    I've posted these photos before. The accumulator failed violently.
    "Pea-Corn and Pop-Nuts"

  9. #9
    Join Date
    Nov 2006
    Location
    Athens, Ohio
    Posts
    6,914
    Post Likes
    Quote Originally Posted by napoleon-dynomite View Post
    Those two pieces of insulation pulled right out and problem solved. One of the reasons this customer called our company in the first place was that the previous company told him that the system needed to be replaced. I would have a hard time telling a customer this without first taking all the necessary reading to properly diagnose the system. One of the most satisfying parts of being a service tech is figuring out why things aren't working as they should. Unfortunately there are calls that still have me wondering what the hell happened.........Like this call. The fire dept. was called out and the neighbors reported that it sounded like a bomb went off.......



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    I've posted these photos before. The accumulator failed violently.
    Rust never sleeps. Or so someone said.
    AOP Rules: Rules For Equipment Owners.

    Free online load calculator: http://www.loadcalc.net/


    There = not here. Their = possessive pronoun. They're = they are
    It's = contraction of it is. Its = the possessive form of it
    Too = also. To = expressing motion. Two = 2
    Then = after that, next. Than = indicates a comparison.
    Questions should end with a question mark "?" Statements end with a period "."

  10. #10
    Join Date
    Mar 2015
    Location
    Hamersville, Ohio
    Posts
    7,281
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    Quote Originally Posted by napoleon-dynomite View Post
    Those two pieces of insulation pulled right out and problem solved. One of the reasons this customer called our company in the first place was that the previous company told him that the system needed to be replaced. I would have a hard time telling a customer this without first taking all the necessary reading to properly diagnose the system. One of the most satisfying parts of being a service tech is figuring out why things aren't working as they should. Unfortunately there are calls that still have me wondering what the hell happened.........Like this call. The fire dept. was called out and the neighbors reported that it sounded like a bomb went off.......



    Name:  temp 004.jpg
Views: 1462
Size:  75.7 KB


    Name:  temp 002.jpg
Views: 1460
Size:  61.0 KB


    Name:  temp 001.jpg
Views: 1453
Size:  76.7 KB

    I've posted these photos before. The accumulator failed violently.
    "Violently" is putting it mildly.
    Hos 4:6 My people are destroyed for lack of knowledge. Because you have rejected knowledge, I will also reject you, that you may be no priest to me. Because you have forgotten your God’s law, I will also forget your children.


    "You've got to Stand for Something or You'll fall for anything" (A. Tippin)


    Mat_15:24 But he answered, “I wasn’t sent to anyone but the lost sheep of the house of Israel.”

  11. #11
    Join Date
    Jul 2019
    Posts
    10
    Post Likes
    wow. some people

    Sent from my BND-L34 using Tapatalk

  12. #12
    Join Date
    Mar 2004
    Location
    Austin, Texas
    Posts
    2,145
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    That picture from napolean-dynomite looks a lot like this one.

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    Yes - those are the return ducts that "should" be connected to the that filter grill.
    Last edited by cxagent; 11-01-2019 at 11:23 AM. Reason: added picture
    If "I have always done it this way" is a good reason to do it again, how many times do I have to do something wrong - before it becomes right?

  13. #13
    Join Date
    May 2006
    Posts
    3,613
    Post Likes
    you have one filter that will filter the incoming air the other air does not need to be filtered kidding

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