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Serving The Fresno & Madera Area


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Common Air Conditioning Problems and How to Troubleshoot Them


It’s hard to imagine getting along in our summer conditions in the Central Valley without having effective air conditioning systems cooling our homes. You probably rely on yours on most summer days—and when that AC starts to malfunction, it can be alarming.

Fortunately, you have a great team to take care of air conditioning repair in Merced, CA whenever you need it: ours. And in some cases, the situation with your AC may be a minor one that you can solve on your own with a little troubleshooting. Below we’ll look at some common air conditioning problems and ways that you can troubleshoot them. 

AC isn’t cooling enough or is cooling unevenly

If your AC is running but not cooling your house adequately or not cooling some areas, there could be several reasons for it.

  • Check the thermostat: Make sure the thermostat is set to the correct temperature and it’s responsive. 
  • Change the air filter: Dirty or clogged air filters restrict airflow, making it harder for the air conditioning system to cool your house effectively. Check the filters and replace them if necessary. This simple step can significantly improve cooling performance. (And replace the filter regularly—every 1–3 months.)
  • Check the condenser unit: The condenser unit, located outside the house, might be blocked by debris or vegetation. Clean the area around the unit and remove any debris to allow for proper airflow.

AC Isn’t Turning On

Here are a few troubleshooting steps to try if your air conditioning system won’t come on at all when it’s supposed to:

  • Check the power supply: Check the circuit breaker to see if the AC has tripped it; reset it if necessary. If the breaker continues to trip, there might be an electrical issue. You can’t fix this on your own, so call our technicians.
  • Examine the thermostat: Make sure that the thermostat is functioning correctly. Replace the batteries (if needed) and check the programming.

Strange Noises

Unusual noises coming from your air conditioning system can indicate major problems. Here are some common noises and their potential causes:

  • Grinding or squealing noise: This could be a sign of a motor that’s wearing down or is already burning out. Shut the AC off and call for assistance.
  • Banging or clanging noise: Loose or broken parts in the air conditioner can cause these noises. Don’t try to locate the loose component, but instead call HVAC pros.
  • Rattling noise: This could be as simple as a loose panel door on the HVAC cabinet door. If this isn’t the source of the noise, you’ll need professionals to inspect the unit. 

Call Us Promptly When You Need Help

Keep in mind that HVAC systems are complex, and some issues require expertise to solve. If you’re unsure about any troubleshooting steps or a problem persists, call our team. We can diagnose and repair your AC so it gets back to work and stays working—and you can enjoy your summer in peace and relaxation.

Contact Purl’s Sheet Metal & Air Conditioning to solve your air conditioning troubles. Uncompromised Quality & Customer Service Since 1952.

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