Summer heat waves can be unbearable without a functioning air conditioning (AC) system to keep your home cool. Unfortunately, AC units are prone to various issues, especially during the times they are needed the most. In this blog post, we’ll explore six common AC problems and how to troubleshoot them. By understanding these issues, you’ll be better equipped to either resolve them yourself or know when it’s time to call a professional.
1. AC Won’t Turn On
One of the most pressing concerns homeowners face is an AC unit that refuses to start. Before assuming the worst, check the basics. Make sure the thermostat is set to “cool” and that the temperature is set lower than the current room temperature. Also, inspect the circuit breaker and fuses, as a tripped breaker or blown fuse could be the cause. Resetting the breaker or replacing the fuse might be a simple fix to restore power to your unit.
2. Ineffective Cooling
If your AC is running but not cooling your home properly, low refrigerant levels may be the culprit. Refrigerant is essential for absorbing heat from indoor air. A refrigerant leak or improper charge during installation can compromise your system’s cooling capabilities. Because handling refrigerant requires special equipment and certification, this is a job best left to a licensed HVAC technician.
3. Thermostat Issues
Sometimes, the problem lies with the thermostat rather than the AC unit itself. Both old dial-style and modern programmable thermostats can malfunction or become miscalibrated. If your AC isn’t turning on or isn’t maintaining the desired temperature, double-check the thermostat settings and consult the user manual. Persistent issues may require recalibration or replacement.
4. Dirty Air Filters and Coils
Clogged air filters are a common and easily preventable issue. Dirty filters restrict airflow, reduce efficiency, and can cause your AC to overwork, leading to higher energy bills and wear on components. Replace or clean your air filters every 1 to 3 months, depending on usage and manufacturer recommendations. Similarly, dirty condenser and evaporator coils can hinder heat transfer. Cleaning these components regularly can significantly improve your system’s performance.
5. Water Leaks and Drainage Problems
Water pooling around your AC unit often points to a blocked condensate drain line. A clogged line can cause water to back up into your system or your home, potentially causing damage. Routine maintenance should include checking and clearing the drain line to prevent blockages and water leaks.
6. Strange Noises or Odors
Odd noises or smells from your AC unit can indicate serious problems. Squealing may suggest a worn belt, while grinding noises could point to motor issues. A burning smell may result from overheating components or dirty filters. Musty or mildew-like odors could indicate mold or drainage problems. In these cases, shut off your AC and contact a professional to inspect the system.
Need Help with Your AC? Contact Us
If you’re dealing with persistent AC problems, Bartlett Heating & Air Conditioning is ready to help. Our certified HVAC technicians in Bartlett, IL, provide expert diagnostics, repairs, and preventive maintenance services to keep your system running smoothly and your home cool all summer long. Contact Bartlett Heating & Air Conditioning at (630) 372-7640 or complete our online form today.
