7 Reasons Your AC Isn’t Blowing Warm Air and How To Troubleshoot

Facing a hot and uncomfortable home because your AC isn’t working? Don’t panic — we’re here to unravel the mysteries of your malfunctioning AC. Join us on this cool journey as we explore common AC issues and provide you with knowledge to troubleshoot like a pro. Common reasons why AC units malfunction include dirty air filters, refrigerant leaks, electrical issues, and thermostat problems. Exploring this blog will help you troubleshoot these issues and get your AC unit back up and running efficiently. Let’s dive in with SM Air, your reliable HVAC sidekick in San Marcos, TX — keeping you cool since 1986.

Reasons Your AC Isn’t Blowing Cold Air

• Low Refrigerant Levels: Signs of low refrigerant in an air conditioning system typically include weak airflow and ice buildup on the coils. Weak airflow may result in insufficient cooling in your space despite the AC running. Additionally, ice buildup on the coils is a common indicator of low refrigerant levels, as the lack of refrigerant can cause the coils to become excessively cold and freeze over. If you notice these signs, contact the professionals to address the issue promptly to prevent further damage to your AC unit.
• Dirty Air Filter: Air filters trap dust and allergens to maintain clean air in your home. A clogged filter can lead to reduced airflow, poor indoor air quality, increased operating costs, and strain on the AC system. It’s recommended to change air filters regularly, such as monthly during peak seasons.
• Frozen Evaporator Coil: The evaporator coil absorbs heat to cool the air. Causes of a frozen coil may include a dirty filter or low refrigerant levels. To defrost a frozen coil, turn off the AC and let the ice melt naturally. Allow the ice on the coil to melt on its own. Do not attempt to manually remove the ice, as this can damage the coil. A trained HVAC technician can identify the root cause of the freezing and implement the necessary solutions to restore the unit’s functioning.
• Blocked Condenser Coil: The condenser coil releases heat outside to keep your home cool. If the condenser coil of an air conditioning system is blocked, it can lead to consequences such as debris accumulation and reduced efficiency. To clean the outdoor unit effectively, carefully remove leaves and twigs that may obstruct the coil. It’s crucial to exercise caution during cleaning to avoid damaging the coil fins, which are crucial for efficient heat transfer.
• Thermostat Issues: The thermostat regulates temperature by controlling when your AC system turns on and off. Troubleshooting steps include checking settings and making sure the cool mode is selected. Check to see that your thermostat is level on the wall to guarantee accurate temperature readings. If the thermostat is battery-powered, consider replacing the batteries for optimal performance.
• Blocked Air Ducts: Air ducts circulate cool air throughout your home. Dust buildup and pest infestations are common causes of blocked ducts, which can hinder airflow and decrease your HVAC system’s effectiveness. For optimal airflow and performance, professional duct cleaning is recommended.
• Compressor Problems: The compressor acts as the heart of the AC system, pumping refrigerant to cool your home. Signs of compressor failure include no cool air, unusual noises, electrical issues, and refrigerant leaks. It’s crucial to call a professional because they have the expertise and tools to safely diagnose and repair these issues.

When To Call a Professional

When faced with a refrigerant leak, a frozen coil that refuses to defrost, or compressor problems in your AC unit, call our experts at SM Air. Professional service offers the benefit of accurate diagnosis, guaranteeing that the root cause of the problem is addressed. Additionally, skilled technicians can provide quality repairs that not only fix the immediate issue but also help prevent future problems from arising.

Routine maintenance by our skilled professionals can help you preserve your system, preventing the need for emergency repairs. Troubleshooting is essential to resolve issues, guaranteeing a healthy AC system. Explore our maintenance club for peace of mind and experience 100% customer satisfaction guaranteed!

Don’t wait! Secure your comfort now by scheduling a maintenance appointment with SM Air.