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AC Blowing Warm Air

Why is my AC Blowing Warm Air and What Can I Do About It?

As the scorching summer heat approaches, an air conditioning system becomes an essential appliance in every household. A malfunctioning AC can turn into a significant source of frustration, especially when it’s blowing warm air instead of cold. However, understanding the common reasons behind this issue can help you troubleshoot and fix the problem. In this blog, we’ll guide you through the most common causes of warm air blowing from your AC and provide you with simple solutions to keep your home cool and comfortable all summer long.

Check the Thermostat

The first thing you should do when your AC starts blowing warm air is to check the thermostat. Ensure that it’s set to “cool” mode, and the temperature is set lower than the current room temperature. Sometimes, a simple thermostat error can lead to warm air blowing from the AC.

Check the Air Filter

A dirty air filter is one of the most common reasons why your AC may be blowing warm air. A dirty air filter restricts the airflow, reducing the efficiency of the AC. It’s recommended to replace the air filter every 1-3 months to ensure proper airflow and maintain the AC’s efficiency.

Check the Condenser

The condenser is the outdoor unit of your AC. If it’s dirty or covered in debris, it can cause the AC to blow warm air. Clean the condenser’s coils and ensure that there’s no debris around it. It’s also recommended to keep the condenser at least 2 feet away from any other objects or walls.

Check the Refrigerant Level

The refrigerant is the substance that cools the air in your AC. If the refrigerant level is low, the AC may blow warm air. It’s recommended to hire a professional HVAC technician to check the refrigerant level and refill it if necessary.

Call a Professional

If you’ve checked all the above-mentioned components and still your AC is blowing warm air, it’s time to call a professional HVAC technician. They have the necessary expertise and equipment to diagnose and fix the problem. It’s always better to leave complex AC repairs to the professionals.

Air Done Right

Air Done Right is the best HVAC company that provides excellent services in the Greater Toronto Area. They have a team of licensed and experienced technicians who can diagnose and repair any AC problem quickly and efficiently. Air Done Right provides same-day service and offers competitive pricing, making them the best choice for all your HVAC needs. Contact Air Done Right today for all your HVAC requirements.


To sum up, a malfunctioning AC during the summer can be a significant source of discomfort. However, by understanding the common causes of warm air blowing from your AC and following the troubleshooting steps we’ve provided in this blog, you can solve the problem and keep your home cool and comfortable. Remember to check the thermostat, air filter, condenser, and refrigerant level regularly and seek professional help if needed. With proper maintenance, you can enjoy the benefits of a functioning AC all summer long. Stay cool!