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  1. #1
    Join Date
    Jul 2009
    Posts
    12

    Question Brand new home not cooling?

    I just purchased a Brand new 1 story brick home and the A/c is not working good enough. its 1860sq ft and its a trane 3.5 ton unit, 13 seer i believe?

    I have had like 4 techs out they say the freeon is correct then they thought it was the evaporator valve or somthing in the coil that controles the freon it puts to the coil well they replaced the whole coil and everything this morning and i was getting the correct temp drop, 75degrees at the retrun and 60 coming out of the vents.

    well this afternoon its up around 95degree's outside and my ac is running non stop its 74 at the return but only 64at a close vent and 68 at another vent.

    so a 6 degree drop is not enough cold air to get it to cut off does anyone have any idea i'm tired of calling them and getting the same old story.???

    Thanks in Advance.

    Zac

  2. #2
    Join Date
    Jan 2004
    Location
    PA
    Posts
    68,795
    You might need to pay another company to come out, and find the problem.

    Then give the installing company the option of repairing it. Or paying for the other company to fix it.
    Contractor locator map

    How-to-apply-for-Professional

    How many times must one fix something before it is fixed?

  3. #3
    Join Date
    Jul 2009
    Posts
    12
    well being only 3 weeks old you think they could get it fixed eh?

  4. #4
    Join Date
    Jan 2004
    Location
    PA
    Posts
    68,795
    You would think so.

    But after 4 techs. Looks like they can't.

    You could call them and tell them you want their best guy. And if can't fix it.
    If they want. You'll call another company if they'll pay the bill.
    Contractor locator map

    How-to-apply-for-Professional

    How many times must one fix something before it is fixed?

  5. #5
    Join Date
    Jun 2005
    Location
    SW Wisconsin
    Posts
    5,034

    Four Techs & No Real Trouble-Shooting Data

    Quote Originally Posted by ZacHolley View Post
    I just purchased a Brand new 1 story brick home and the A/c is not working good enough. its 1860sq ft and its a trane 3.5 ton unit, 13 seer i believe?

    I have had like 4 techs out they say the freeon is correct then they thought it was the evaporator valve or somthing in the coil that controles the freon it puts to the coil well they replaced the whole coil and everything this morning and i was getting the correct temp drop, 75degrees at the retrun and 60 coming out of the vents.

    well this afternoon its up around 95degree's outside and my ac is running non stop its 74 at the return but only 64at a close vent and 68 at another vent.

    so a 6 degree drop is not enough cold air to get it to cut off does anyone have any idea i'm tired of calling them and getting the same old story???
    Thanks in Advance.Zac
    First, everyone that has a service call should tell the Tech upfront that they want a record of everything done with all the test data clearly wrote in the invoice.

    The 4-Service Techs(?) left nothing of value for you, us, or any other follow-up Tech.

    Where do you live that not one in four could trouble shoot the system?

    Could write a lot more but hands are very bad. Click on udarrell for much more. - Darrell

  6. #6
    Join Date
    Mar 2008
    Location
    South Mississippi on the Golden Gulf Coast. 100 degree heat and 90% pluss humidty.
    Posts
    46
    I agree with been there. I think I might look at air mix ing in the return ie I mean attic air

  7. #7
    Join Date
    Jan 2009
    Location
    Keokuk, IA
    Posts
    5,520
    Could be drywall dust that got in the could during construction. Seems like there wer several posts about this over the winter with furnaces getting construction dust on the heat exchangers.

    When was the drywall and painting done??? recently in the hot, humid weather, or over the winter months? Did they run your system?

  8. #8
    Join Date
    Jul 2009
    Posts
    12
    i live in oklahoma and i dont think it has dust it was just built right before i moved in.

    the manager is coming back out today we shall see

  9. #9
    Join Date
    Jun 2007
    Location
    Vermont
    Posts
    235

    Hmm

    Quote Originally Posted by ZacHolley View Post
    i live in oklahoma and i dont think it has dust it was just built right before i moved in.

    the manager is coming back out today we shall see
    I think means construction dust from when the house was constructed. I have seen it as a problem on a few TV shows I have seen.

    When I moved into my condo in early fall the AC wasn't even charged. They didn't charge them until all the contractors had left just to make sure they weren't run.

    They also didn't activate the elevator until the end of construction for fear that the construction workers would start using it.

  10. #10
    Join Date
    Nov 2006
    Location
    Oregon
    Posts
    853
    There is so much more to it then merely checking refrigerant charge.

    It could very well be the design of the ductwork, poor insulation, inadequate airflow across the evaporator, installation errors, etc.

    An A/C system also needs to remove humidity so understanding that aspect of the system design is also important.

    When you meet with the manager I'd start by asking how the overall system was designed? Was a load calc. ever done? How about ductwork layout?

    If the manager employs 4 techs who do not understand HVAC then I'd insist they they try and bring in the manufacturer's rep. to help them.

    Do you have any recourse with the builder since this is a new home?

  11. #11
    Join Date
    Jul 2009
    Posts
    12
    what do you mean recourse with he builder?

  12. #12
    Join Date
    Sep 2002
    Location
    Northeast Ohio
    Posts
    4,855
    Home warranty expressed or implied. Not sure about OK but in OH there are defined legal rights for the purchaser of a new home. You can check can check with your State AG for specifics
    A good HVAC tech knows how, an educated HVAC tech knows why!

    DEM


  13. #13
    Join Date
    Nov 2006
    Location
    Oregon
    Posts
    853
    If it's a brand new home that you purchased from the builder then it's ultimately the builder's responsibility to ensure the HVAC system works. Has the builder been fully paid, is there a warranty from the builder?

    The HVAC subcontractor is generally only responsible to the builder, (who hired them), and the builder is responsible to you for the entire completed home.

    If this HVAC company isn't providing any solutions it seems like it's the builder's responsibility to find another company to make things right for you.

    The builder likely has a lot more clout with the subcons then the homeowner does in situations like this.

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