3 Common Problems With AC Units And Solutions For Them

4 August 2018
 Categories: , Blog


Your home's AC unit is responsible for bringing cool air inside your home. Although it can last for many years, it will stop working correctly at some point. Here are several common problems to look out for and ways to fix them. 

Dirty Air Filter 

At some point, your HVAC air filter will get dirty to the point where it can no longer work correctly. When this happens, dirt and debris can circulate in your HVAC system. Not only does this drive up your energy costs every month, it could lead to expensive repairs and replacements. 

Fortunately, addressing a dirty air filter is easy. All you need to do is find a suitable replacement. Make sure you select the right size and type. HEPA filters are one of the better options because they're designed to screen more particles than the average filter. Reusable air filters are also ideal because they can be used more than once, as long as they're cleaned at the right intervals. 

Frozen Condenser Coil 

When the condenser coil freezes up, your AC unit will no longer bring in cool air. A number of problems could be going on that are causing this outside coil to freeze up. For example, your AC unit may not be fully charged. It may need more coolant in order for the condenser coil to stop freezing up.

Dirty air filters can also cause this outside coil to freeze up. If your filter is dirty, you'll just need to follow the steps previously mentioned. After identifying the cause of your freezing issues, be sure to turn off your AC unit completely. Give the condenser coil plenty of time to thaw out before turning your unit back on.

Low Refrigerant 

Low refrigerant can affect your AC unit in a variety of ways, from causing the condenser coil to freeze up to making your HVAC system inefficient. Dealing with low refrigerant should always be left up to certified HVAC professionals. Not only is it illegal to work with AC refrigerant without a license, it can also be dangerous. 

An HVAC professional will fill your AC unit up to the correct levels. If these refrigerant levels keep getting low on a consistent basis, this professional can also look for leaks. They'll send a special dye through your AC system. Then, they'll use a UV light to pinpoint the dye and the exact area where your refrigerant may be seeping out.

No matter what type of AC unit you have, complications will occur eventually. At least when you're aware of common problems, you can tackle them head on before they get worse and cost you a lot of money. Reach out to an air conditioning services provider for more information. 


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