It’s summertime, and you’ve noticed your AC never stops running. Here’s the thing: It’s normal for your AC to run continuously during hot summer months. You see, on extremely hot days—we’re talkin’ high 90s to 100s—your system needs to keep up with the incoming heat. To do that, it will run longer in order to maintain a constant, desired temperature in your home. However, if your AC is always running but you’re never comfortable, that’s a clear sign of a problem that needs to be fixed. Here are 4 common causes of an AC that constantly runs and never delivers. Your system requires a certain amount of airflow to cool your home. If airflow is blocked or restricted in any way, your system works harder and runs longer. Common culprits of this issue include dirty air filters, leaky or disconnected ducts and closed or blocked air vents. If your inside unit’s evaporator coil is dirty it makes it tough for refrigerant (or “Freon”) to absorb heat from your air.

The same goes for dirt buildup on an outside unit’s condenser coils. A dirty condenser can block the release of absorbed heat from the refrigerant. Basically, both issues will cause your system to run constantly since it’s struggling to remove heat from your home. Clean the outside unit yourself. Or have a trusted professional do it as part of a routine maintenance plan. You’ll need a professional to clean the inside unit’s coils anyway. When your system is low on refrigerant, it will struggle to reach the temperature setting, causing it to run constantly. You need a professional to check your system's refrigerant level. If it’s low, make sure they find and fix the leak (since a leak is why you lose refrigerant), and then add more. Read more on refrigerant leaks. An undersized AC is like “The Little Engine That Could” but can't. It will constantly run but the system is simply too small to meet your home’s cooling demands. What to do: Have a professional air conditioning contractor perform a heat load calculation on your home to know what size (measured in tons) your home needs.

If you suspect this is your problem you’ll want to fix it fast to prevent costly repairs with your compressor due to frozen coils and constant wear and tear from your system working too hard.used ac unit for sale Ask an expert or schedule a repair online and save 10%.how to charge ac unit Why Is My Air Conditioner Running Constantly?ac unit keeps turning off Noticed your A/C running non-stop this summer? If you live in a scorching summer climate like Phoenix, that’s normal. In fact, a system that runs continuously on crazy hot days–compared to a system that constantly cycles on and off–is a good thing for your comfort and your wallet. That is, if your A/C is running and maintaining a cool and comfortable temperature inside your home.

However, if your A/C is running constantly and NOT keeping your home comfortable…there is a problem that needs to be fixed. In this article, we will discuss simple ways to solve this problem on your own and hit on a few complicated causes which will require a professional's help. First, try these simple fixes. Change your air filter. Check the filter at least once a month and change out when clogged with dirt. Open all supply vents. Open all vents that blow air into your home (yes, this includes vents in unused rooms).Remove furniture or curtains that may be blocking return vents (these are the vents that sucks in air inside your home). All of these simple fixes address problems with airflow. Your system requires a certain amount of airflow in order to supply your home with cool air. None of the above effective? Then you might need to call a professional air conditioning contractor to fix one or more of these problems.The main cause of low refrigerant is a refrigerant leak.

You will need a trusted HVAC technician to find and fix the leak, then add more refrigerant. Leaky or disconnected ducts. Leaky or faulty ductwork causes conditioned air to escape or be drawn in from places ductwork is found (i.e. attics, walls or crawl spaces). Dirty condenser unit/ coils. A dirty condenser unit (outside unit that holds condenser coils) will block the release of absorbed heat from the refrigerant. Dirt blocks airflow over the evaporator coil (found inside your indoor unit), making it tough for refrigerant to absorb heat from your air.If your system is too small for your home’s cooling needs, it will constantly run but rarely deliver enough cool air. You will need a professional to perform a heat load calculation to determine the problem. Note: Most, if not all, of the causes above can lead to a frozen evaporator coil. If you see ice on a refrigerant line or suspect this is the problem, call an A/C tech to check your refrigerant level, evaporator coil and blower.