Why Is My AC Unit Running but Not Cooling in Royal Palm Beach, FL?
You flip on your AC expecting a wave of cool, refreshing air — but instead, you’re met with warm or weak airflow. The system sounds like it’s running, but your home still feels uncomfortable.
If this sounds familiar, you’re not alone. At Pro-Tech Air, we help homeowners in Royal Palm Beach, Wellington, West Palm Beach, Palm Beach Gardens, and nearby communities figure out what’s going on when their AC stops delivering cool air.
Let’s look at some of the most common causes — and what you can do about them.
7 Common Reasons Your AC Is Running But Not Cooling
If your AC isn’t doing its job, here’s what might be to blame:
1. Dirty Air Filter
In Florida’s subtropical climate, filters clog quickly with dust, pollen, pet hair, and debris. A dirty filter restricts airflow, reduces efficiency, and can make allergies or asthma worse — especially concerning for families with children or seniors.
We recommend checking your filter every month and replacing it at least every three months — more often during heavy use.
2. Faulty Thermostat
Sometimes it’s not the AC unit — it’s the thermostat. Whether the settings are off, the battery is low, or the sensor is malfunctioning, your thermostat could be sending the wrong signals.
If you’ve got a smart thermostat, check for error alerts. Otherwise, try new batteries and double-check your temperature settings.
3. Refrigerant Leak
Your AC uses refrigerant to cool the air. If there’s a leak, the system will keep running, but your home will stay warm and sticky — especially on those humid Palm Beach County afternoons.
Only a licensed HVAC technician can locate, fix, and recharge the refrigerant safely and in line with EPA standards.
4. Blocked Condenser Unit
Your AC’s outdoor condenser unit pushes heat out of your home. If it’s blocked by leaves, mulch, fences, or overgrown shrubs, it can’t “breathe” — and your system will struggle to cool effectively.
Make sure the area around your condenser is clear by at least two feet in all directions.
5. Frozen Evaporator Coil
A dirty or clogged filter, blocked vents, or ductwork problems can cause your evaporator coil to freeze. When that happens, the refrigerant flow is disrupted — and cooling stops.
If your system is making strange noises or leaking water, this could be the issue.
6. Leaky or Blocked Ductwork
In many older homes across Loxahatchee, Westlake, and Lake Worth, ductwork can deteriorate or get blocked. Air escapes into the attic or crawlspaces, meaning less cool air reaches your rooms.
Only a professional duct inspection can confirm this — and the fix may be easier than you think.
7. Damaged Compressor
The compressor is your AC system’s engine. If it’s failing, refrigerant won’t circulate properly, and your system may blow warm air or not cool at all.
While some compressors can be repaired, many homeowners find replacement is the smarter, longer-lasting investment — especially if the system is more than 10 years old.
What to Do When Your AC Won’t Cool
Try these simple steps first:
Replace your air filter if it’s dirty
Check thermostat settings and battery
Clear leaves or debris from the outdoor unit
Make sure all vents are open and unobstructed
If these don’t solve the issue, it’s time to call in the pros.
Please don’t attempt refrigerant or electrical repairs yourself — these jobs require specialist tools and training, and DIY attempts could damage your unit or void your warranty.
Call Pro-Tech Air for Reliable AC Repair in Royal Palm Beach & Nearby Areas
At Pro-Tech Air, we understand how urgent it feels when your cooling system stops working — especially during Florida’s hot, humid summers.
We’re a locally owned business that believes in honest service, no-pressure advice, and helping our neighbors stay cool, comfortable, and stress-free.
Our experienced team serves Royal Palm Beach, Wellington, Palm Beach Gardens, Boca Raton, and beyond, and we’re just a call away.
📞 Call Ed and the Pro-Tech Air team today to restore your comfort and peace of mind.
