How to Troubleshoot Common Air Conditioning Issues: A Guide by Anderson Heating and Air in Bentonville

Address:  1202 McClain Rd Bldg 7, Bentonville, AR 72712, United States

Phone number: +14792695876



Air conditioning problems can arise at any time, leaving your home uncomfortable during the sweltering summer months. Knowing how to troubleshoot common AC issues can save you time, money, and stress. Anderson Heating and Air is committed to helping Bentonville residents maintain their cooling systems. In this guide, we’ll explore common air conditioning problems and provide practical troubleshooting tips to help you keep your AC running smoothly.

Common Air Conditioning Issues and How to Troubleshoot Them

  1. AC Not Cooling Properly

If your air conditioner runs but doesn’t cool your home effectively, there are several potential causes to investigate:

  • Dirty Air Filters: Clogged filters can restrict airflow and reduce cooling efficiency. Check and replace the air filters regularly.
  • Thermostat Settings: Ensure the thermostat is set to “cool” and the temperature is set lower than the current room temperature.
  • Blocked Vents: Make sure that vents and registers are not blocked by furniture, curtains, or other objects, allowing for proper airflow.
  • Low Refrigerant Levels: Low refrigerant can significantly impact cooling performance. If you suspect this is the case, contact a professional to check and refill the refrigerant.
  1. AC Unit Won’t Turn On

An AC unit that doesn’t power on can be alarming, but there are a few common issues to check before calling for help:

  • Power Supply: Verify that the AC unit is receiving power. Check the circuit breaker to ensure it hasn’t tripped. If it has, reset it and see if the AC turns on.
  • Thermostat Problems: Ensure the thermostat is functioning correctly. Replace the batteries if necessary and make sure it is set to the appropriate mode.
  • Wiring Issues: Loose or damaged wiring can prevent the AC from turning on. Inspect the wiring connections if you are comfortable doing so, but if you notice any issues, call a professional for repairs.
  1. AC Unit Freezing Up

A frozen AC unit can lead to poor performance and potential damage. Here’s what to check:

  • Dirty Coils: Dirty evaporator coils can cause the unit to freeze. Clean the coils carefully or have a professional do it.
  • Low Refrigerant: Low refrigerant levels can lead to freezing. A professional can check and refill the refrigerant.
  • Restricted Airflow: Ensure air filters are clean and vents are unobstructed to promote proper airflow.
  1. Unusual Noises

Strange noises coming from your AC unit can indicate various issues:

  • Rattling or Banging: Loose parts, such as screws or fan blades, can create rattling noises. Tighten any loose parts if you feel comfortable doing so.
  • Hissing or Bubbling: These sounds often indicate a refrigerant leak, which requires professional attention.
  • Squealing: A squealing noise can be caused by a worn-out belt or motor bearings. Contact a professional to inspect and replace the faulty parts.
  1. Foul Odors

Bad smells emanating from your AC unit can be unpleasant and concerning:

  • Musty Smell: This usually indicates mold or mildew growth in the system. Clean or replace the air filters and consider having the ductwork professionally cleaned.
  • Burning Smell: A burning odor can indicate electrical issues or overheating components. Turn off the AC immediately and call a professional to inspect the system.

Preventive Maintenance Tips

To avoid many common AC problems, regular maintenance is key. Here are some preventive maintenance tips:

  • Replace Air Filters Regularly: Change the air filters every 1-3 months to ensure proper airflow and reduce strain on the system.
  • Keep the Outdoor Unit Clean: Clear away debris, leaves, and grass from around the outdoor unit. Gently clean the fins with a garden hose.
  • Check the Thermostat: Make sure the thermostat is functioning correctly and set to the desired temperature.
  • Schedule Annual Maintenance: Have a professional technician from Anderson Heating and Air inspect and service your AC unit annually. This helps identify and resolve potential issues before they become major problems.

When to Call a Professional

While many AC issues can be resolved with basic troubleshooting, some problems require the expertise of a professional. Contact Anderson Heating and Air if:

  • The issue persists despite troubleshooting efforts.
  • You suspect a refrigerant leak or electrical problem.
  • The AC unit requires major repairs or component replacements.
  • It’s time for annual maintenance.


Understanding common air conditioning issues and knowing how to troubleshoot them can save you time and discomfort during the hot summer months. However, it’s essential to recognize when professional help is needed to ensure your system operates efficiently and safely. Anderson Heating and Air is here to assist Bentonville residents with all their AC repair and maintenance needs. Whether you’re facing a minor issue or require a comprehensive inspection, our experienced technicians are ready to provide reliable and prompt service. Stay cool and comfortable by keeping your air conditioning system in top shape with our expert tips and support.

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