How to Know if Your AC Unit Needs Freon

AC Unit Care and MaintenanceHaving an air conditioner is a must during the summer in Knoxville, TN. So when you notice that your air conditioning unit is not functioning like it used to, then there’s a chance that yourair conditioning might be low on Freon or refrigerant. Figuring out the issue in advance can help you figure out if you need to add coolant or not.

Here are a few ways on how to know if your AC unit needs a Freon charge.


One of the first things that you need to observe when your air conditioning isn’t working as it should is the thermostat. Set the thermostat to at least 85 degrees and leave it for an hour. Then, change it to around 60 degrees and wait for the AC unit to do its magic. If the house feels like it’s starting to cool, then it only requires a reset.


When you notice that you have a low airflow, then it’s another sign that your AC is running low on Freon. You may check this by placing your hand right in front of the vents and feel if it’s blowing out warm air. You may want to give it at least 15 minutes to ensure that it’s not just residual air that’s coming out of the vent system.

Ice Buildup

You may also want to check if there are any noticeable ice buildup right around the connectors. Leaks can easily be spotted where the air conditioner connects to the unit’s coolant tank. You may also want to check the tubes, fan motors, and surrounding hoses as well.

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These are just a few of the problems that you may encounter as soon as you have an AC unit installed in your home. It’s always best to hire experts to perform regular air conditioning maintenance to ensure its long-lasting performance.