Everyone knows how miserable a summer with no air conditioner, or one that malfunctions, can be. If your AC is running but not cooling, you may feel frustrated and uncomfortable. With this in mind, we will discuss the top reasons for your AC blowing hot air and what you can do about it. It’s essential to understand the importance of regular AC maintenance and when it’s time to call a professional technician.

Check Your Air Filter

A dirty air filter can cause many problems, including AC malfunctions. Your air filter accumulates dust, dirt, and debris over time. This makes it harder for your AC to move air through the system. A dirty filter can restrict airflow, which can overwork your system. This can lead to overheating and poor cooling performance. It is recommended that you check your air filter regularly and replace it if it appears dirty or clogged. Typically, filters should be replaced every 2-3 months.

Girl checking thermostat of broken air conditioner Check the Thermostat

If the thermostat is not functioning properly, it may cause your AC to blow warm air instead of cool air. Check that your thermostat is set to “cool” mode and that the temperature is correctly set. If your thermostat is old or outdated, consider upgrading to a new programmable thermostat for improved energy efficiency.

Check for Refrigerant Leaks

The air system requires refrigerant to cool the air that passes through it. Without the proper amount of refrigerant, your AC will blow hot air. If you suspect a refrigerant leak, turn off your AC immediately and call a professional technician. Refrigerant leaks are not DIY problems, and a technician will need to evaluate and repair the leak.

Clean Your Condenser Coils

The condenser coils outside your home help release the heat from the refrigerant. If they are dirty, the heat will not dissipate effectively, which could be the cause of your AC blowing hot air. Cleaning the condenser coils is a simple process and can be done with a garden hose, but be sure to turn off your AC first.

Inspect Your Outdoor Unit

Your outdoor unit houses the compressor, fan, and other components that help regulate the temperature in your home. If the fan is not working correctly, or if the motor is burned out, your AC will not function correctly. Check to ensure that your outdoor unit is free of debris and that the fan is operating correctly. If you detect any issues, call a professional technician.

Call a Professional Technician

If you’ve tried these troubleshooting tips and nothing has solved your AC blowing hot air, it’s time to call a professional technician. An experienced technician can evaluate and diagnose the problem before recommending the best course of action. Regular maintenance can prevent issues from occurring, and it’s essential to call a professional at the first sign of trouble.

Person turning off air conditioner Final Thoughts

A malfunctioning AC can be frustrating and uncomfortable, especially in sweltering summer temperatures. If you notice your AC blowing hot air instead of cool, start with checking your air filter, thermostat, and outdoor unit. If you suspect a refrigerant leak or your attempts at troubleshooting have been unsuccessful, call a professional technician immediately. Remember, regular maintenance is key to keeping your AC running efficiently and avoiding issues altogether.

Stack Heating, Cooling, Plumbing & Electric

Stack Heating, Cooling, Plumbing & Electric can help you keep your AC running efficiently and avoid costly repairs. Our experienced technicians can evaluate and diagnose any potential issues with your system, from air filters to refrigerant leaks. Plus, regular maintenance from our team can help extend the life of your AC unit and improve energy efficiency. Contact us today on our website, or by calling (440) 937-9134 to schedule an appointment!

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