Why Is Your AC Not Blowing Cold Air?

Pine Island, which features the cozy feel of a small fishing village, enjoys Florida’s balmy temperatures, even in wintertime. Come summer, however, you’ll want your air conditioner on full blast to stay comfortable. If you find your AC not blowing cold air, that’s not just an annoyance – it can also be a health hazard and an emergency during Pine Island’s hotter spells.

Below, you’ll learn the top reasons why your cooling unit may not be working and how to fix it. You can also call us for AC repair in Pine Island, FL.

AC Not Blowing Cold Air? Here’s How To Fix Your Air Conditioner for a Fine Summer in Pine Island, Florida

Wondering why your trusty air conditioner has quit on you? Check out our AC troubleshooting tips below to get your system back in working order.

Change the Air Filter

Your air conditioner’s filter isn’t a set-it-and-forget-it thing. Although some filters can last for a year before needing replacement, most systems need a new filter every 30 to 90 days. Go much longer than that, and your filter will become clogged with dirt, hair, pet dander, and bacteria. 

A severely dirty air filter can cause your system to stop blowing cool air or even to overheat. Luckily, it’s easy to change out. Simply pop off the cover, remove the old one, and put the new filter in its place. 

Remember to ensure you use the right size filter. Your cooling unit will exhibit performance problems if the filter isn’t a perfect fit.

Inspect Your Vents and Ductwork

Your air conditioner connects to an intricate system of ductwork, which routes cool air throughout your space. Is your AC not blowing cold air? Your ducts could be clogged with dust or even animal nests. 

Professionals will use a vacuum cleaner with a hose attachment to clean debris from the ducts while also checking your vents. If one room of your home is too warm while the others are cool, the warm room may have a closed or blocked vent. Open it back up or remove anything in front of it, and the room’s temperatures should even out.

Perform a Refrigerant Levels Check

Your air conditioner uses a chemical called refrigerant to extract warm air and help the system transport it outside. Refrigerant levels don’t fluctuate, as it is a closed-loop system, and there’s no need to add more. However, with a leak, the refrigerant can seep out and stop the system from producing cold air.

Technicians will use pressure gauges to check the refrigerant level. If the refrigerant is too low, our HVAC technicians in Pine Island will look for leaks and top it up.

Check for a Dirty or Frozen Evaporator Coil

The evaporator coil is one of the most important parts of your cooling system. It absorbs heat from the air passing over it, which cools that air before the system pushes it through the vents. If something damages the evaporator coil or it is dirty, you’ll get warm air instead of a cool breeze.

Is your AC not blowing cold air? Evaporator coil cleaning solutions will use foam to break up stuck-on debris. If the coil is frozen, the problem could be low refrigerant or clogged ducts.

Clean the Condenser Unit

Your air conditioning system’s condenser unit sits outside, constantly exposed to the elements. It clogs with dirt, leaves, and grass clippings. If you let the debris build up for long enough, it gets inside and blocks airflow, and the system won’t blow cold air anymore.

Clear any weeds and debris away from the blocked condenser unit and cut back nearby vegetation. Technicians will also clean the condenser coil with a soft brush.

Verify Your Thermostat Settings

Sometimes, a lack of cooling is a simple problem, like a thermostat settings issue. Set your thermostat to the desired temperature, and check that it’s in cooling mode. If that doesn’t work, you may need to replace the thermostat batteries. 

Still no luck? The thermostat might require calibration, so check your owner’s manual. Mechanical thermostats have a little screw to turn, whereas smart thermostats have an auto-calibrate feature.