Why does my air conditioner not blow cold air?

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  6 answers
  • Jcs29777902 Jcs29777902 on Jun 01, 2018
    Probably needs freon.

  • Lyndee Corley Lyndee Corley on Jun 01, 2018
    Check the coils take the filter out and clean it and clean the coils with coil cleaner it's a couple dollars at your local hardware store. if you haven't it should be cleaned pretty often especially during the summer time also you want to check the duck work make sure there's not any large holes in it because mice like to use it to make nests with so they'll chew big holes in it. It might be blowing cold but all the cold air is going out either under the house or in your attic.

  • Lyndee Corley Lyndee Corley on Jun 01, 2018
    *Duct not duck lol

  • Lynn Sorrell Lynn Sorrell on Apr 23, 2019

    • If your unit is turning on, but the air isn’t cooling efficiently, your refrigerant may be low. You may also need to clean off the evaporator or condenser coils by brushing them off or vacuuming them. In addition, the filter may need to be replaced. Clogged, dirty filters block normal airflow and reduce a system’s efficiency considerably.
    • Insufficient Air Flow. Dirty air filters and/or closed or obstructed supply-air and return-air grilles may cause insufficient airflow through your system.
    • Leaks. These are usually associated with low refrigerant or a clogged drain pipe. Clogs can be fixed by clearing out the clogged pipe within the evaporator coil pan. Leaks should always be handled by a professional HVAC contractor.

    house or car same

  • Corey Trojanowski Corey Trojanowski on Sep 23, 2019

    There are multiple common air conditioning issues that can cause your unit to stop blowing cold air. No system parameter is more critical than adequate airflow. Declining efficiency, sub-standard cooling and increased wear and tear result when airflow falls below specs. Common causes include:

    • Dirty air filter - The filter should be changed monthly during the cooling season. It’s an easy DIY task that takes just a few minutes. Ask your HVAC contractor to show you how if you don’t know.
    • Closed or obstructed vents - If individual supply or return vents are shut or inadvertently blocked by furniture or other obstructions, system airflow suffers. Check all vents to verify they’re fully open.
    • Leaking ducts - Residential ductwork is often leaky, typically losing 20% or more of airflow due to deteriorated joints and other issues. Ducts should be inspected and pressure-tested by a certified HVAC contractor to determine extent of leakage. Sealing options are available to restore normal airflow.