Although you’ll want warm air during fall and winter, it can be a major bummer if your AC starts blowing out hot air for too long. It’s important to know the root of the issue before the problem becomes worse. Here are six common reasons why your HVAC system could be blowing hot air.
#1: Low Refrigerant
One of the most common and obvious causes of warm air is low refrigerant, which is what’s necessary to make the AC unit work properly. If it isn’t absorbing humidity and heat from the air sufficiently, then the air won’t feel as cold as it should. Since this can occur due to various complications, you’ll need to call a professional for help with this.
#2: Incorrect Thermostat Setting
Simple human error can also be a reason for hot air being blown through your AC. Be sure to double-check whether you set the system to cool or warm on the thermostat setting. If the device isn’t working properly, be sure to call a professional for help. Those with “smart” thermostats might even expect them to make changes on their own due to energy-saving protocols or software updates.
#3: Clogged Air Filters
Your air filters are also incredibly important for the proper function of your HVAC system. If they’re clogged by debris, it can cause the AC unit to work harder and reduce its efficiency. Without the air being able to cool down enough, the vents can start to blow warm air instead. Fortunately, this can easily be fixed or avoided by replacing the filter every one to three months.
#4: No Power in Outside Unit
Sometimes, the outside unit for your AC system is the one at fault. If the unit loses power, the air in your house can stop being cooled. This can occur during a power outage, so just remember to verify that the outside device is working.
#5: Return Vents Blocked or Closed
Homeowners can accidentally block return vents with furniture, boxes, or other items, which can impact the airflow of your AC system. To avoid closing or blocking the vents, simply make sure that you remove obstructions and clear up your living space so that the HVAC can run as smoothly as possible.
#6: Duct Leaks
If you notice warm air is still being blown even while the unit is working perfectly, it could indicate that there is something wrong along the ducts. A leak can easily cause any cool air from your AC to escape the ducts and vents, as well as introduce warm air. Fixing this will typically require sealing to keep the colder air from getting out.
In many cases, hot air blowing out of your AC system isn’t a complicated matter and can often be fixed with minor adjustments. Living in a house that’s too hot or cold can be miserable, so rather than trying to troubleshoot while feeling uncomfortable, call a professional! They can diagnose and resolve the problem much quicker, so that you can get back to enjoying your living space as soon as possible.
Meet Joe
As a father of 6, Joe understands just how vital a functional HVAC system is for everyone’s comfort and sanity. At A&H Heating and Air, he works hard to ensure that our customers can make the most of their HVAC systems. Our team can perform professional AC maintenance, emergency repairs, duct sealing, and new HVAC installation services. Need help getting back control of your AC? Click here or give us a call at (850) 988-3116.