Why Is Your AC Not Blowing Cold Air in Louisville, KY?

Is your AC unit not blowing cold air and making your home sticky and uncomfortable during the hottest time of year? This issue affects countless homeowners every year and has several causes that experts need to pinpoint. Before you schedule HVAC repair in Louisville, KY, find out the reasons why your unit might be malfunctioning and what you can do to keep it in good condition. 

Reasons Why Air Conditioners Stop Blowing Cool Air

Our experts at A1 Mechanical Heating & Cooling run through a basic checklist when figuring out why your system won’t produce any cool air. One or multiple issues could be to blame and need repairs. Below is a breakdown of common reasons why your home isn’t receiving adequate cooling. 

Thermostat Issues

Many homeowners assume that the air conditioner is the problem when the fault could lie with the thermostat. After all, it’s the piece of equipment that dictates when your cooling system turns on and off. To rule out problems with your thermostat, perform the following troubleshooting tasks:

• Check the settings
• Lower the temperature
• Change the batteries

If none of these measures help, you’ll have to investigate further. 

Clogged Air Filters

Ask a professional HVAC technician, “Why is my AC unit not blowing cold air?” and they’ll likely tell you to check your air filter. The filter collects dirt and debris to prevent the allergens from flowing through the rest of your system, but you must replace it regularly to avoid a clog. When too much debris collects in the filter, it restricts airflow from your system and causes your air conditioner to work harder. 

Failing to change the filter can lead to multiple air conditioner problems, including:

• An overheated motor
• Compressor malfunction
• Frozen evaporator coil

For optimum airflow and system function, replace your air filter every three months. Households with multiple occupants or pets might need to replace them more frequently depending on the amount of contaminants that circulate the space. 

Low Refrigerant Levels

Your air conditioner needs liquid refrigerant to trap heat inside your home and release it outside. If your cooling system somehow runs low on refrigerant due to a leak, it will need to work harder to cool your house. Always let a qualified technician fix a refrigerant leak and assess the condition of your system. 

Refrigerant contains various chemicals that can be harmful upon exposure. Reach out to a trusted HVAC contractor like A1 Mechanical if you spot puddles near your unit or can’t figure out why it’s not blowing cool air. 

Dirty Evaporator Coils

Another common reason for an AC unit not blowing cold air surrounds the evaporator coil, which houses the refrigerant. The outer part of the coil is prone to moisture and may leave you dealing with mold or mildew growth. Dirt and grime can also build on the coil and insulate it, making it harder for the system to go through the heat transfer. 

Clogged Condensate Drain

Your air conditioner’s indoor coil, located above the furnace, works with the outdoor unit to remove moisture from the air. This moisture drains through a connected pipe, but when debris clogs the pipe, it can cause the system to shut down to prevent water damage inside your home or harm to the equipment. A licensed technician must inspect and clear the blockage to restore proper water flow and get your system running smoothly again.

Blocked Vents or Ducts

Just like with thermostat issues, the air conditioner might not produce cool air because of other components in your HVAC system. If you operate a central air conditioning system, clogged ducts can prevent cool air from traveling through your vents, while blocked vents also pose a problem. 

Check all of the vents in your home to make sure that they’re open. Remove any large furniture or other objects that may be blocking airflow. To ensure proper air distribution, have a certified contractor inspect and clean your ductwork to remove any debris buildup. 

How To Prevent a Lack of Cool Air From Your Air Conditioner

As long as you prioritize HVAC care and maintenance, your AC unit not blowing cold air shouldn’t become a problem. Every homeowner should perform the following tasks regularly to avoid common air conditioning problems:

• Replace the air filter regularly. . 
• Adjust the thermostat’s settings and check its power source. 
• Remove obstructions blocking the HVAC vents. 

While these DIY measures can help, the best way to keep your system in excellent condition is to schedule routine  tune-up services. Professionals understand the complexities of different air conditioning systems and will go through a detailed checklist of items to ensure your unit works as it should. 

The Benefits of Air Conditioning Maintenance

You don’t have to experience a lack of cool air to reap the benefits of air conditioning maintenance. Every home or business owner should invest in routine maintenance to enjoy the following benefits:

• Improved energy efficiency: Experts clean internal components like evaporator coils to help the system operate more efficiently and reduce your utility costs. 
• Reliable performance: Maintenance takes care of common problems that could ultimately impact the unit’s performance and your indoor comfort. 
• Lower repair costs: By addressing minor issues during a tune-up service, technicians lower the risk of system breakdowns requiring costly repairs. 
• Peace of mind: You can use your air conditioner throughout the summer and not worry about it malfunctioning when you schedule a tune-up appointment before the peak cooling season. 

Oftentimes, a lack of maintenance will cause many of the problems that lead to no airflow so don’t skip this essential service if you want your air conditioner to operate properly. 

Receive Professional HVAC Solutions In Louisville – Contact A1 Mechanical for Service

Is your AC unit not blowing cold air? Does it appear to be less efficient than normal? Don’t delay scheduling an HVAC service from A1 Mechanical.

Our technicians have years of experience servicing various HVAC equipment, including central air conditioners, heat pumps, and ductless mini-splits. You can count on us for everything from professional installation to maintenance and repair services. Call A1 Mechanical at (502) 708-2247 to book reliable air conditioning repairs and learn more.