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  1. #1

    PROBLEMS WITH A NEW A/C IN A NEW HOUSE

    Long story.
    Purchased a brand new house in Palm Desert ca (Indio) back in April this year, this is a vacation home, the house is 1,512 sq ft, single floor, 10ft high ceilings, the A/C seemed to work fine in April, however when I went back down in May the A/C would not keep the set temperature, I had it set at 75 and it would only go down to 76 during the early hours of the morning, during the day time it would go up to 80, the builder sent 3 guys around to look at it and they said it was fine but I should have it set to 80 to make it work good, I told them you have to be joking, anyway I set it to 80 but during the day time it went up to 83, in all this time when the temperature was going up, the A/C was working 100% of the time, left for a month then came back in July same thing it would just go up during the day time, the builder talked me into adding extra insulation in the attic, I told them that it would not work but I went ahead with it, as soon as it was done I set it back to 75, well it did go down to 75 during the early hours of the morning, but same thing during the day time, it went up to 80 again, after testing it at 75 for a few days (failed the test) I set it back to 79 well it went up to 83 during the day time, the build now says there is nothing wrong with me A/C and they refuse to do anything with it, I have a ADT thermostat as I live in Canada and I can change the temperature from my I-phone from here, plus it gives me the history of the temperatures in the house, I have even shown the builder these, all they say is that it will have a slight temperature veriance.
    What would be wrong with it, or is this what an A/C performs like.
    The A/C is a lenox 3 ton (that is what they tell me)

  2. #2
    Join Date
    Dec 2010
    Location
    The Quad-Cities area (midwest).
    Posts
    2,660
    It could be a number of things, also, maybe more than just one thing or issue. You'll need to stay on top of it. It sounds like they are not too interested in getting to the problem. You should be able to cool the home at least 20 degrees cooler than the outside temperature.

  3. #3
    The outside temperature could be as high as 120 in Indio ca, so that would mean the house inside temperature could be as high as 100, what is the point of having an A/C I could live with 120 if I had to live with 100

  4. #4
    Join Date
    Aug 2012
    Location
    North Dakota
    Posts
    518
    I would keep after them as they will want you to be happy, see to it ,dont let them run you over. a well built home with a properly sized system should make you comfortable as Im sure thats what you were charged for and paid top dollar for!

  5. #5
    I have asked them for the Title 24 and got no reply from them, this builder is one of, if not the biggest builder in the USA, other houses same model as mine have had problems and they changed the A/C from a 2 ton to a 3 ton, but they say mine is a 3 ton as they stopped using the 2 ton on my model, the house next to me just got finished and the owner moved in, I asked her how her A/C performs and she said it worked great, mine does not work hardly at all, I am not there right now, will not be back down until sometime in Oct, I have it set at 94 while not there, even at that it has to run for 10 to 15 mins to bring the temperature back down to 94 when it hits 95 inside the house, outside temperature is like 105.

  6. #6
    Join Date
    Sep 2004
    Location
    Memphis
    Posts
    2,502
    Do you have your model number in any of your paperwork ?


    Sent from my iPhone using Tapatalk
    Life is like a jar of jalapenos. What you do today might burn your ass tomorrow.

  7. #7
    Join Date
    Dec 2007
    Posts
    4,702
    As an average, it can take an hour to cool 1 degree, so the fact it takes only 15 minutes to drop a degree at that temp shows it can work.

    If you are expecting it to come down 10 degrees in a short period of time with a high outdoor temp, then you may be expecting too much. Without being there it is hard to be specific.

    The thermostat you have does have the ability to access it remotely, correct? If so, and if you are not doing so already, turn on the a/c prior to arrival to give it time to do its job.

    Also, if it gets to and maintains a desired temp, the unit is probably working and sized properly. This is a generalization.

    Unlike heating where you are adding to the temp of the house, a/c is actually the removal of heat. Think of it like your car radiator, once it overheats or gets really hot it takes quite a bit to cool it down.
    The Food Stamp Program, administered by the U.S. Department of Agriculture, is proud to be distributing the greatest amount of free meals and stamps EVER.
    Meanwhile, the National Park Service, administered by the U.S. Department of the Interior, asks us to "Please Do Not Feed the Animals". Their stated reason for this policy "... the animals become dependent on handouts and will not learn to take care of themselves."
    from an excerpt by Paul Jacob in Sun City, AZ

  8. #8
    Join Date
    Jul 2000
    Location
    Northern Wisconsin
    Posts
    2,006
    With you being a owner that doesn't live there full time I would venture a guess that the builder is either hoping you will give up or the warranty will run out, either way they are off the hook for making it right.

    Is it right? No. What's wrong? As others have said, it could be a number of things. Who is responsible for making it right? The builder.

    I'm assuming the builder had to pull permits for the house and the AC. Contact the building inspection department and voice your concerns that either something wasn't built to the specifications that the builder supplied to them or something is wrong with how either the home or the AC equipment is performing.

    Next thing I would suggest is contacting an attorney ( I hate even suggesting this, but it seems more incentive is needed to get the builder to acknowledge the issue and the fact that you're not living there and time is an important factor in getting this resolved ) and have a letter drafted to the builder and whoever else is involved. I'd suggest the attorney take over "negotiations" with the builder.
    Use the biggest hammer you like, pounding a square peg into a round hole does not equal a proper fit.

  9. #9
    Not with me, I think it is a Lennox axc 13, I had a photo of the model# and serial# but can not find it
    Quote Originally Posted by hvac hero View Post
    Do you have your model number in any of your paperwork ?


    Sent from my iPhone using Tapatalk

  10. #10
    Join Date
    Aug 2007
    Location
    Northern VA 38 degrees N by 76 degrees W
    Posts
    5,060
    Quote Originally Posted by englishjimbo View Post
    Not with me, I think it is a Lennox axc 13, I had a photo of the model# and serial# but can not find it
    Did the installing company give you any paper work with field data such as pressures and temperatures voltage etc.?

  11. #11
    Join Date
    Nov 2004
    Location
    SW FL
    Posts
    6,274

    THIRD PARTY REQUIRED

    Quote Originally Posted by englishjimbo View Post
    The outside temperature could be as high as 120 in Indio ca, so that would mean the house inside temperature could be as high as 100, what is the point of having an A/C I could live with 120 if I had to live with 100
    If you are not willing to call an independent A/C firm, you're NOT to going to get ANYWHERE,
    _________________ -------------
    except maybe Growing A BIGGER KNOT on your head from banging it on the wall
    and continue to be H O T and Bothered.
    Designer Dan
    It's Not Rocket Science, But It is SCIENCE with "Some Art". ___ ___ K EEP I T S IMPLE & S INCERE

    Define the Building Envelope and Perform a Detailed Load Calc: It's ALL About Windows and Make-up Air Requirements. Know Your Equipment Capabilities

  12. #12
    Join Date
    Jun 2005
    Location
    SW Wisconsin
    Posts
    4,977
    I don't know what the summer design temp is in your desert climate; but the A/C should be sized to handle the load-calc at that design temp.
    In that very hot dry climate the airflow should be set at 460-CFM up-to 500-CFM per ton of cooling; the duct system & Return-Air filter area sizing has to be large enough accordingly...

    It would appear that the home is not Energy Efficient & if I were in your shoes I would have a Home Energy Efficiency Audit performed to document the problems.

    Then have the retro-work performed & a load-calc performed to determine equipment sizing & proper duct system design engineering.

    The A/C should be tested for its delivered performance; every HVAC company needs to know how to get at least a decent ballpark performance result.
    It is not that difficult to do...

  13. #13
    Join Date
    Nov 2004
    Location
    SW FL
    Posts
    6,274

    DESIGN CONDITION

    Palm Springs Thermal AirPort ASHRAE 0.4% = 111'F Dry Bulb 73'F Wet Bulb
    brought to you by American Society of Heating, Refrigerating and Air Conditioning Engineers

    76'F INSIDE .. Differential Design Temperature should actually be 35'F
    .......... ... ... ... ... ... Learn something New _ _ once in a while
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    Designer Dan
    It's Not Rocket Science, But It is SCIENCE with "Some Art". ___ ___ K EEP I T S IMPLE & S INCERE

    Define the Building Envelope and Perform a Detailed Load Calc: It's ALL About Windows and Make-up Air Requirements. Know Your Equipment Capabilities

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