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Why is My AC Unit Overheating?

AC overheating
Reading Time: 2 minutes

If there’s one thing that anyone who lives in the sunshine state knows, it’s surviving without an AC is the thing nightmares are made of. If you’re struggling, you may want to take a look at our quick and handy guide to troubleshoot any problems with your AC. Overheating Is one of the main problems you could have with your AC. If the system overheats, it will cause the panel breaker in your home to constantly trip. Regular air conditioning maintenance will help prevent issues further issues like this.

Reasons Why the Unit Is Overheating

  1. A Grimy Air Filter

    The air filter can be considered as one of the most vital components of your AC. It ensures that you breathe in air free of various pollutants such as dust particles, mold spores, or even pet dander. When it goes too long without a clean or even a replacement, it will block the airflow in your duct and ventilation system and force your system to run for longer periods of time in order to provide you with the same level of comfort that you’re used to.

    Fix It

    It is possible for you to replace the air filter on your own, but depending on the complexity of your unit, you may want to call in a licensed technician to make the switch for you. The technician may also be able to best advise you on the type of filter you need for your home, as each filter has its own MERV (Minimum Efficiency Rating Value) rating.

  2. Filthy Condenser Coils

    These are tubes that run through your HVAC system; they are generally filled with refrigerant. Similar to what happens with grimy filters, if your condenser coils are filthy, your AC will run for longer periods of time. Simply put, the refrigerant takes in all of the excess heat indoors and transfers it outside of your home, this works to cool your home, but if the coils are covered in dirt, the heat can’t be released. This prevents your HVAC system from reaching the desired temperature setting on your thermostat.

    Fix It

    While DIY isn’t impossible, it rarely is recommended for something like this. When it comes to your condenser coils it’s always better to err on the side of caution and call a licensed technician. Your technician may see something you’ve missed. For example, you may believe that your coils should just be cleaned, but the damage done to them may mean they’ll need to be replaced. This isn’t something you’d know, but a professional would.

  3. Low Refrigerant Levels

    While a dirty condenser coil can affect the temperature, and cause your AC to overheat, the same can be said for low refrigerant levels. Without an adequate amount of refrigerant your HVAC system will not be able to properly cool your home and your unit will overheat.

    Fix It

    Don’t even hesitate to call a professional, as you may have a refrigerant leak. Commons signs of a refrigerant leak include problems with your AC on days that it is extremely hot or it takes a lot longer to cool your home, than before. Your refrigerant levels will always need to stay the same and if there is a lack of refrigerant, then you may have a leak. A licensed technician will know exactly how to handle the situation and ensure that the leak is repaired.

At Art Plumbing, Air Conditioning & Electric we’ve got you covered. Find out about our regular preventative maintenance plans and ensure you beat the heat this summer.


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