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Common AC Issues and How Professional Repair Can Make a Difference

With summer temperatures soaring, a well-functioning air conditioning system is essential for maintaining a comfortable and refreshing indoor environment. However, AC units are complex machines and can sometimes experience issues that affect their performance and efficiency. As a homeowner, it’s crucial to recognize the signs of common air conditioning problems and seek professional assistance when needed. Our team of highly skilled and experienced technicians at A-Guy Heating & Air is dedicated to diagnosing and resolving AC issues, ensuring your system operates at optimal levels and provides lasting comfort throughout the warm months.

Stay tuned as we delve into some of the most common AC issues homeowners encounter and how partnering with our expert technicians can help you address these problems effectively and efficiently. 

Low Airflow and Uneven Cooling: Pinpointing the Culprits

Inadequate airflow and inconsistent cooling throughout your home are common AC issues that can significantly impact comfort. Possible reasons for these problems include:

  1. Dirty Air Filters: Clogged filters can hamper airflow, causing your AC system to work harder. Make sure to check and replace your filters regularly to maintain proper airflow and prevent uneven cooling.
  2. Duct Leaks: Leaky ducts can cause cool air to escape, leading to inconsistent temperatures in different areas of your home. Our technicians are skilled in inspecting and sealing ductwork to ensure efficient airflow.
  3. Malfunctioning Fans: If the blower fan in your indoor unit or the condenser fan in your outdoor unit is not functioning correctly, this can result in reduced airflow. Our professionals can perform fan repairs or replacements to restore optimal airflow in your AC system.

Refrigerant Leaks: The Need for Timely Repairs

Refrigerant is a vital component of your AC system, responsible for absorbing heat and providing cooling effects. Leaks can occur due to damage to coils or tubing, and symptoms may include warm air blowing from vents, ice buildup on coils, and hissing sounds from the unit. The risks associated with refrigerant leaks include:

  1. Reduced Cooling Capacity: Low refrigerant levels impair your AC’s ability to cool your home efficiently, resulting in higher energy bills and uncomfortable temperatures.
  2. Compressor Damage: Prolonged operation with a refrigerant leak can lead to compressor overheating, potentially causing irreparable damage and costly system failure.
  3. Environmental Impact: Refrigerants can be harmful to the environment, making it crucial to address leaks as quickly as possible.

Our technicians are trained to repair refrigerant leaks, recharge your system, and ensure your AC operates safely and efficiently.

Sensor and Thermostat Issues: Keeping Your Home Comfortable

Sensors and thermostats play a vital role in maintaining the proper function of your AC system. A malfunctioning thermostat can lead to inconsistent temperatures and poor energy efficiency. Signs of sensor or thermostat issues include:

  1. Inaccurate Temperature Readings: Your thermostat may display incorrect room temperatures, causing your system to overcool or undercool your home.
  2. Inconsistent Cycling: If your AC unit cycles on and off frequently or runs continuously, it may be due to a faulty thermostat.

Our experienced technicians can evaluate your thermostat, diagnose any issues, and perform necessary repairs or replacements to ensure accurate temperature control and optimal energy efficiency.

Strange Noises and Odors: Warning Signs of Potential Issues

Unusual sounds or smells may indicate problems within your AC system:

  1. Noises: Rattling or buzzing sounds may suggest loose components while screeching or grinding noises can signal more severe issues like motor or fan problems. Don’t ignore these warning signs – our professionals can diagnose and repair the underlying cause.
  2. Odors: Musty or acrid smells emanating from your vents can indicate issues such as mold growth or electrical problems. Our technicians can find the source of the odor, address the issue, and ensure safer and cleaner air quality.

Frozen Evaporator Coil: Prevention and Repair

Evaporator coils can freeze due to various factors, such as restricted airflow, low refrigerant levels, or dirty coils. Frozen coils can impair your system’s cooling capacity, lead to increased energy consumption, and potentially damage your compressor. Our technicians can help prevent and repair frozen coils by:

  1. Ensuring Proper Airflow: Regular filter maintenance and duct sealing can minimize airflow restrictions, reducing the risk of coil freezing.
  2. Repairing Refrigerant Leaks: Addressing leaks and maintaining appropriate refrigerant levels can prevent coil freezing and related performance issues.
  3. Cleaning Coils: Routine coil cleaning removes dirt and buildup, promoting efficient heat transfer and preventing freezing.


Understanding common AC issues and seeking professional assistance when needed is vital to maintaining optimal system performance and comfort in your home. Our experienced and dedicated technicians at A-Guy Heating & Air are committed to diagnosing and resolving problems and providing top-notch AC repair in Orland Park tailored to your unique needs. If you’re experiencing any issues with your AC unit or have concerns about its performance, contact us today for prompt, efficient, and reliable service.