Warning Signs of a Malfunctioning Air Conditioner

Adara E • June 4, 2025

Early Signs of a Broken A/C System

Did you know that the average high temperature in June for Myrtle Beach is a warm 89 degrees?


To make sure you aren’t left without A/C when it matters most, we’ve gathered eight early warning signs of a malfunctioning system. If you notice your air conditioner experiencing any of these signs, it’s a good idea to call the cooling experts at CTC.

1. Decreased Airflow

If the airflow coming from your vents feels weaker than usual or is inconsistent throughout the house, it could be a sign that your air filters are clogged, the ductwork has blockages, or there is a problem with the blower motor.

2. Strange Noises

If you hear unusual sounds like grinding, squealing, or banging coming from your air conditioner, it may be a sign of mechanical problems or parts that are worn out and need attention.

3. Unusual Odors

If you notice foul smells coming from the vents when your cooling system is running, it could indicate mold or mildew growth, a burnt wire, or other issues that require system cleaning and inspection.

4. Uneven Cooling

If you notice different rooms in your house feel warmer or cooler than others, it could be a sign of a ductwork issue or an unbalanced system.

5. Increased Energy Bills

If you receive an unexpected spike in your energy bill without increasing your air conditioning usage, your system may be working harder than usual due to age or malfunction.

6. Frequent Cycling

If your cooling system turns on and off frequently without completing a full cooling cycle, it may be struggling to maintain the set temperature. This can be a sign of a thermostat issue, compressor issue, or an improperly sized system. 

7. Leaking & Moisture

If you see signs of leaking or moisture around your air conditioning unit or the vents, it could mean you have an issue with the condensate drain line, a refrigerant leak, or other issues that should be addressed by a technician as soon as possible.

8. Visible Damage or Ice Buildup

If you notice ice built up on the refrigerant line or outdoor coil, or dents and rust on your A/C unit, you could have a serious problem that requires professional service.

Conclusion:

To keep your home cool all summer long, it’s important to watch out for these early signs of a malfunctioning air conditioning system. If you do notice a sign, be sure to call CTC right away so our technicians can perform a thorough inspection to diagnose the issue.


Call us today to schedule a service appointment!

(843) 651-6000

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