Question about Carrier 38CKC036 Air Conditioner

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Air conditioning unit not cooling

My air conditioning unit does not cool off the house. I hear and see it running, the fan comes on, the thermostat says it's cooling and is set at 70 degrees but temps inside the house get to almost 90 during the summer days. At night it seems to cool the house off somewhat but not any lower than about 75 degrees. The furnace has been checked and all parts of the cooling unit cleaned according to manufacturer instructions. What else could it be?

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  • Anonymous Jun 06, 2008

    IT DOESNT WORK!!!!

  • angela37fl Jun 07, 2008

    My air cond unit is not cooling the house. The air is cool coming from the vents but it is not pushing through strong enough. It is full of freon and coils are not frozen and it has a new filter and coils are clean.

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The problem sounds like a defective capacitor its located on the condensing unit outside, also a contactor that is used can be defective also.

Posted on Jun 15, 2008

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My American Standard Heritage 11 unit was not working properly when i came home from work and the temperture in the house according to the thermostat show the temperture in the house to be 85 degree&#


the dual run capacitor is bad located in main panel of unit size of small red bull can it will be swelled up on top indicating it bad get on at electric motor or electric supply house most ac stores wont sell it has a rating like 35/5 370

Aug 27, 2012 | Heating & Cooling

Tip

Air Conditioners Cooling Tips


  • Whole-house fans help cool your home by pulling cool air through the house and exhausting warm air through the attic.
  • Set your thermostat as high as comfortably possible in the summer. The smaller the difference between the indoor and outdoor temperatures, the lower your overall cooling bill will be.
  • Avoid setting your thermostat at a colder setting than normal when you turn on your air conditioner. It will not cool your home any faster and could result in excessive cooling and, therefore, unnecessary expense.
  • Consider using an interior fan in conjunction with your window air conditioner to spread the cooled air more effectively through your home without greatly increasing your power use.
  • Avoid placing lamps or TV sets near your air-conditioning thermostat. The thermostat senses heat from these appliances, which can cause the air conditioner to run longer than necessary.
  • Plant trees or shrubs to shade air conditioning units but not to block the airflow. Place your room air conditioner on the north side of the house. A unit operating in the shade uses as much as 10% less electricity than the same one operating in the sun.
  • on Sep 21, 2010 | Heating & Cooling

    1 Answer

    There is no cool air coming through my vents from my Lennox Hp13 heat pump. Only room temperature air seems to come through.What might be wrong?


    Due to the many different questions I see about Air Conditioning, I am including this overview to help us better understand each other for trouble shooting. A basic air conditioning system has a Thermostat, Air Handler or Furnace Fan and a Condensing unit. In a split system, the condensing unit (Condenser) is separate from the furnace and usually in the back yard. When working properly, it blows hot air. It connects to the cooling part of the system by 2 copper lines. One large line and 1 small line. The part that cools the house is the "Evaporator" and is usually on top of the furnace inside the square metal box (Plenum). When the Air Conditioner is running, the large copper line should be cold and the smaller line should be warm. Common signs of low refrigerant are that both lines are the same temperature and/or frost or ice has built up on the large line at the condenser. The thermostat will normally display room temperature on till it is touched to change the setting. It could have a "Span" setting as well as times and temperatures. The operating "span" of MOST residential thermostats is 40 to 90 degrees. That means you can set it as low as 40 degrees and no higher than 90 degrees. It probably has a fan switch also. When in the "ON" position, the fan will run constantly, 24 / 7, but the condenser will still cycle on and off as needed to keep the house at set point. If you have a suggestion to include in this paragraph, please let me know.

    Take a look at everything above. Let me know what type of help you need. Roger

    Apr 10, 2011 | Heating & Cooling

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    It is freezing inside, and it is not cooling properly


    Welcome to FixYa,
    Check the Following
    Is your filter clean? Look and the evaporator in the inside unit. Is it frosted up? Do you have condensation water in the pan? Go to the outside unit and feel the air coming out of the fan. Is it warm? Now feel the 2 copper pipes coming out of the unit. Is the small one warm or hot? Is the larger one cool ? Is there moisture on it?
    Air conditioner runs but doesn't cool at all
    If the airflow is good and the air coming out is not cold, your home air conditioning problem may be a temporary problem - your coils may have frozen. Turn the unit off for an hour to let them thaw, then try again. If cold air is now present, freezing coils were the problem; if the problem recurs soon after turning on, you may need to replace the coils. Again, call a pro. If you have ceiling vents in upstairs rooms and the air flowing from them is consistently warm, you probably have leaky or poorly insulated ductwork in your attic. See my Attic ceiling insulation page for more information on insulating ductwork that runs through attics.
    Another likely home air conditioning problem if you have good airflow but no cooling is that thebreaker to the outside unit is shut off, which, depending on the installation, can either cause the air conditioning system to not run at all, or to appear to be running but not provide any cooling. If you can hear the compressor fan running outside, the breaker is on, but if the outside unit is silent the outside breaker may be off. If switching it on does not solve the problem, look for the high pressure cut outon the condenser and try resetting that.

    Check this Link for Detailed Repair Click here

    Hope you got an Idea...Thanks for Contacting FixYa...

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    www.appliancefactoryparts.com/content/.../118816.pdf - United States
    Above is your service and repair manual, with this you will be able to troubleshoot and repair your Aircon.
    I suspect, your thermostat may have a faulty sensor?
    factoidz.com/troubleshooting-your-air-conditioning-thermostat/

    http://www.inspectapedia.com/heat/Thermostats.htm

    Below is a DIY AC, troubleshooting how to. http://www.repairclinic.com/Air-Conditioner-Troubleshooting

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    My blower motor doesn't blow air out the air ducts why


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