It’s a hot summer day, and you’re eagerly anticipating the cool, refreshing air from your air conditioning unit. But you’re met with hot air blowing through the vents instead of the expected chill. It can be a frustrating and concerning experience, leaving you wondering what’s causing the issue and how to fix it.

We’ll explore the common reasons your AC is blowing hot air and provide you with troubleshooting steps to get your cooling system back on track.

Refrigerant Leak

One of the most common reasons an AC unit blows hot air is a refrigerant leak. Refrigerant is the lifeblood of your air conditioning system, responsible for absorbing heat from the indoor air and transferring it outside. If there’s a leak in the refrigerant lines or coils, the system won’t have enough refrigerant to cool the air effectively.

To check for a refrigerant leak, inspect the outdoor unit for any visible signs of leakage, such as oil stains or hissing sounds. If you suspect a leak, it’s best to call a professional HVAC technician to diagnose and repair it properly.

Dirty Air Filters

A dirty air filter is another common issue with an AC blowing hot air. The air filter traps dust, dirt, and other airborne particles, preventing them from circulating through your property and damaging your AC unit’s internal components.

When the air filter becomes clogged, it restricts airflow, making it harder for the system to cool the air effectively. This can cause the compressor to work harder, leading to higher energy consumption and potentially causing the unit to blow hot air.

Simply replace or clean the air filter according to the manufacturer’s recommendations to fix this issue. Depending on your usage and the environment, you may need to do this every one to three months.

Thermostat Issues

Your thermostat controls your building’s temperature and your AC unit’s operation. If the thermostat is not functioning correctly, it may be the reason your AC is blowing hot air.

Check to ensure that the thermostat is set to “cool” mode and that the temperature setting is lower than the current room temperature. If the thermostat is battery-powered, try replacing the batteries. If the issue persists, the thermostat may need to be recalibrated or replaced.

Condenser Unit Malfunctions

The outdoor condenser unit releases the heat absorbed from the indoor air. If it is not functioning correctly, it can cause the AC to blow hot air. Inspect the condenser unit for obstructions, such as debris or overgrown vegetation, that may prevent proper airflow. Additionally, check the condenser coils for any signs of damage or corrosion, as this can impede the unit’s ability to release heat effectively.

Compressor Failure

The compressor is critical to your air conditioning system, acting as its heart. Imagine it as a pump that keeps refrigerant circulating. This refrigerant is crucial in cooling, absorbing heat inside your home, and releasing it outdoors. If the compressor malfunctions, it disrupts this vital circulation, rendering the AC unit unable to cool the air effectively. Consequently, hot air gets pushed through the vents, leaving you sweltering instead of feeling refreshed. By prioritizing maintenance and addressing potential issues early on, you can help ensure your compressor and AC system function optimally for years.

Ductwork Issues

The ductwork in your building plays a crucial role in distributing cool air throughout your living spaces. If there are any leaks, blockages, or other issues with the ductwork, it can prevent the cool air from reaching the intended areas, leading to hot air being blown from the vents.

Inspect the ductwork for any visible signs of damage or leaks, and consider having a professional HVAC technician perform a ductwork inspection and any necessary repairs.

Restore Cooling Comfort

If your AC is blowing hot air, it’s important to troubleshoot the issue promptly to avoid further damage to the system and ensure your home and building stay comfortable during the hot summer months. By addressing common problems like refrigerant leaks, dirty air filters, thermostat issues, condenser unit problems, compressor failure, and ductwork issues, you can get your cooling system back on track and enjoy the refreshing relief of cool, conditioned air.

Call B&D Industries for All Your AC Needs

B&D Industries, Inc. has serviced residential, commercial, and industrial properties with specialized expertise for over 69 years. During that time, we’ve grown exponentially and now reach New Mexico, Arizona, Idaho, and New York areas. Our quality of services and exceptional customer experience set us apart from our competitors as we strive to change the industry one project and one relationship at a time.

When you call B&D Industries, Inc. you can rest assured knowing that your home’s HVAC appliances, plumbing, and electrical systems are in good hands. Our licensed technicians are dedicated to working with you to ensure your home is up-to-code and functioning correctly.