Troubleshooting Common AC Problems: Tips from Anderson Heating and Air in Fayetteville

Address:  70 N College Ave Suite 14, Fayetteville, AR 72701, United States

Phone number: +14792695939



Air conditioners are complex systems that can experience a variety of issues, especially during the peak summer months in Fayetteville. While some problems require professional repair, many common AC issues can be troubleshooted and resolved with some basic knowledge and tools. Anderson Heating and Air provides this guide to help you identify and fix some of the most frequent air conditioning problems.

1. AC Unit Not Turning On

If your air conditioning unit isn’t turning on, it can be due to several reasons:

  • Check the Thermostat: Ensure that the thermostat is set to “cool” and the temperature is set below the current room temperature. Also, check the batteries and replace them if needed.
  • Inspect the Circuit Breaker: A tripped circuit breaker can prevent your AC from turning on. Locate your electrical panel and check if the breaker for the AC unit has tripped. If it has, reset it and see if the AC starts.
  • Examine the Power Supply: Ensure the AC unit is properly plugged in and that any switches near the unit are turned on.

2. AC Not Cooling Properly

When your air conditioner runs but doesn’t cool your home effectively, consider these steps:

  • Clean or Replace the Air Filter: A dirty or clogged filter can restrict airflow, reducing cooling efficiency. Check the filter monthly and replace or clean it as necessary.
  • Inspect the Outdoor Unit: Make sure the outdoor unit (condenser) is free of debris, leaves, and dirt. Clean the coils gently with a hose and remove any obstructions around the unit.
  • Check the Thermostat Settings: Verify that the thermostat is set correctly and functioning properly. Consider recalibrating it or replacing it if it’s not accurate.

3. AC Making Unusual Noises

Strange noises from your air conditioner can indicate various issues:

  • Rattling or Banging: Loose or broken parts inside the unit can cause rattling or banging noises. Turn off the AC and inspect it for loose screws, bolts, or components. Tighten or replace any loose parts.
  • Buzzing: A buzzing sound may indicate electrical issues, such as a failing capacitor or loose wiring. These problems should be addressed by a professional to ensure safety.
  • Squealing: Squealing noises are often caused by a worn or misaligned belt. Inspect the belt and replace it if necessary.

4. AC Leaking Water

Water leaks around your air conditioning unit can result from several issues:

  • Clear the Condensate Drain Line: A clogged drain line can cause water to back up and leak. Use a wet/dry vacuum to remove blockages and pour a mixture of bleach and water down the drain line to prevent mold and algae growth.
  • Check for Frozen Coils: Low refrigerant levels or restricted airflow can cause the evaporator coils to freeze, leading to water leaks as they thaw. Address the underlying issue to prevent freezing.
  • Inspect the Drain Pan: Ensure the drain pan is not cracked or overflowing. Replace it if necessary.

5. AC Short Cycling

If your air conditioner frequently turns on and off, it may be short cycling:

  • Check the Thermostat Placement: Ensure the thermostat is not placed near heat sources or in direct sunlight, which can cause it to register incorrect temperatures and short cycle the system.
  • Clean the Air Filter: A clogged air filter can cause the system to overheat and short cycle. Replace the filter if it’s dirty.
  • Examine Refrigerant Levels: Low refrigerant levels can lead to short cycling. This issue typically requires a professional technician to diagnose and correct.

6. Weak Airflow

Weak or insufficient airflow from your AC unit can make your home uncomfortable:

  • Inspect the Ductwork: Leaks or obstructions in the ductwork can reduce airflow. Check for visible damage or blockages and have the ducts professionally sealed if necessary.
  • Clean the Vents: Ensure that all vents are open and not obstructed by furniture or other objects. Clean the vents to remove dust and debris.
  • Check the Blower Motor: The blower motor is responsible for circulating air throughout your home. If it’s malfunctioning, it may need repair or replacement by a professional.

When to Call Anderson Heating and Air

While many common AC problems can be troubleshooted and resolved with basic maintenance and repairs, some issues require professional attention. Contact Anderson Heating and Air in Fayetteville if you encounter any of the following:

  • Persistent Issues: If your AC continues to malfunction despite your efforts to troubleshoot and repair it, professional diagnosis and repair may be necessary.
  • Electrical Problems: Electrical issues, such as faulty wiring or a failing capacitor, should be handled by a professional to ensure safety.
  • Refrigerant Leaks: Low refrigerant levels or refrigerant leaks should be addressed by a certified technician to prevent further damage to your system.

Preventative Maintenance Tips

Preventative maintenance is essential for avoiding many common AC problems and ensuring your system operates efficiently:

  • Schedule Annual Tune-Ups: Have a professional technician inspect and service your AC system annually to identify and address potential issues before they become major problems.
  • Keep the Outdoor Unit Clean: Regularly clear debris, leaves, and dirt from around the outdoor unit to maintain proper airflow and efficiency.
  • Monitor System Performance: Pay attention to your AC system’s performance and address any unusual noises, leaks, or reduced cooling capacity promptly.


By understanding and troubleshooting common AC problems, you can maintain a comfortable indoor environment and extend the life of your air conditioning system. While many issues can be resolved with basic maintenance and repairs, don’t hesitate to contact Anderson Heating and Air for professional AC repair services in Fayetteville. Our experienced technicians are here to ensure your home stays cool and comfortable all summer long.

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