Troubleshooting Tips for Homeowners near Greenville SC
It’s one of the most frustrating things for a homeowner. Your central air conditioner is running, but your house still feels warm and sticky. If you’re in Greenville or nearby and wondering, “Why is my AC unit not cooling?” you’re not alone.
This is one of the most common calls we get every summer. Here are a few simple things you can check yourself first. Then we’ll cover when it’s time to bring in a pro.
DIY Quick Checks Before You Call a HVAC Company
Sometimes the fix is easier than you think.
1. Is your thermostat set correctly?
Double-check that your thermostat is on “cool” and the fan is set to “auto.” A lot of times it’s set to “on” which is much differnt than “auto”. Also check the batteries and replace them if they are not working properly.
2. Dirty air filter?
A clogged air filter can restrict airflow and make your central AC unit run without really cooling.
Fix: Swap it out with a clean one, especially if it’s been a while. You should change your filters every 3 months or even more if you have allergies or pets to help with indoor air quality. The more you use your cooling systme, the more often you should check and replace your air filters.
3. Ice on your indoor coil or outdoor unit?
Ice buildup means your system may be low on refrigerant or struggling with airflow.
Fix: Turn the AC off and the fan on to thaw it. Don’t keep running it frozen!
4. Tripped circuit breaker?
Sometimes, the inside unit is blowing air but the outside condenser isn’t running.
Fix: Check your electrical panel for any tripped breakers. If it trips again—call a pro.
Still Not Cooling? Here’s What Might Be Going On
If you’ve tried the basics and your home is still uncomfortable, here are some common causes we see in the Greenville area:
Low Refrigerant (Freon)
Your system might have a leak. Without enough refrigerant, your AC can’t cool the air properly.
Bad Capacitor or Contactor
These are small electrical parts that help your outdoor unit start and run. If they fail, your AC might hum but not cool.
Frozen Evaporator Coil
Even if you don’t see ice, a frozen coil can prevent the system from absorbing heat from your home.
Dirty Outdoor Unit
Pollen, grass clippings, and debris can clog your condenser coil—especially in Upstate SC’s allergy-heavy springs.
Why This Happens So Often in and around Greenville
The Upstate’s humidity makes your system work harder, especially during late summer. A unit that’s already struggling can get overwhelmed quickly and what feels like “just warm air” could be a sign it’s been under stress for weeks.
When to Call the Pros at Air Repair AL
If you’ve tried the basic steps and your system is:
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Running constantly but the house won’t cool
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Blowing warm or slightly cool air
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Making unusual noises or smells
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Leaking water or showing signs of ice
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Turning on and off quickly (short cycling)
…it’s time to call in a professional.
We offer fast, affordable cooling repair services across Greenville, Simpsonville, Greer, and nearby. We’ll diagnose the issue and walk you through your options, whether it’s a quick fix or something bigger.
“Is This Going to Be Expensive?”
Not always. Many repairs (like a capacitor or refrigerant recharge) are affordable, especially if caught early.
Typical Greenville cooling repair costs:
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Basic diagnostic: $89–$129
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Capacitor or contactor: $150–$300
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Refrigerant issues: $200–$600+
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Major repairs (compressor): $1,000+
We’ll always give you pricing upfront. No surprises.
Don’t Sweat It—We’ll Help You Cool Down
If your central air is running but not cooling, don’t wait until it shuts down completely. You don’t have to figure it out alone.
Schedule Local Repairs in Greenville Today
Whether it’s a small fix or the start of something bigger, we’re here to help. Fast, friendly, and with no pushy sales talk.
Call 864-251-5309 now or contact us online with any questions.
Serving Greenville, Berea, Greer, Mauldin, Taylors, Simpsonville & beyond.