is Your AC Coil Leaking Refrigerant?
is Your AC Coil Leaking Refrigerant? Here's What That Really Means
If your air conditioner has been running constantly but your home still isn't cooling down, a refrigerant leak in the evaporator coil could be the reason. It's one of the more common issues we see on service calls, and it's also one of the most misunderstood. Here's what's actually happening inside your system, what your options are, and how to avoid the same problem down the road.
What Is the Evaporator Coil, and Why Does It Leak?
The evaporator coil sits inside your air handler and is responsible for absorbing heat from the air in your home. It's made of thin metal tubing that carries refrigerant through the system. Over years of use, that tubing can corrode from the inside out or develop small pinhole leaks, especially in Florida's humid climate, which is tough on HVAC components.
Once a coil starts leaking, refrigerant slowly escapes the system. As levels drop, your air conditioner has to work harder to cool your home, energy bills climb, and comfort suffers.
Why You Can't Just "Top Off" the Refrigerant
This is a common misconception, and an important one to clear up. Under EPA regulations, it is illegal to add refrigerant to a system with a known leak unless the leak has been properly repaired first. Topping off refrigerant on a leaking coil isn't a fix. It's not even a legal option. The refrigerant will simply leak back out, often within weeks or months, and the underlying problem never actually goes away.
The right approach is to locate the source of the leak, repair or replace the affected component, and only then recharge the system with refrigerant.
What Happens Next: Repair or Replace?
Once a coil leak is confirmed, the first thing we do is check the equipment's warranty status. Many evaporator coils carry a manufacturer warranty of 10 years or more on parts.
If the coil is still under warranty: The replacement part may be covered at no cost, with the homeowner typically responsible for labor.
If the coil is out of warranty: Depending on the age and condition of the system, replacing the coil is usually the most reliable path forward. Coils that have reached the end of their useful life are more prone to develop additional leaks even after a repair, so a full coil replacement often makes more sense than a patch job, both for reliability and for your wallet in the long run.
Either way, we always walk homeowners through the options and the honest reasoning behind our recommendation before any work begins.
What Could Have Prevented This?
Coil failures don't usually happen overnight. They're often the result of years of wear that could have been caught earlier. A few things go a long way in preventing this kind of repair:
Annual coil cleaning. Dirt, debris, and biological growth on the coil can accelerate corrosion over time.
Routine refrigerant level checks. Catching a slow leak early can mean a small repair instead of a full coil replacement.
Keeping the outdoor unit clear. Debris and buildup around your condenser add strain to the whole system.
Staying current on seasonal tune-ups. Regular maintenance catches small issues before they turn into bigger, more expensive ones.
A maintenance plan is one of the simplest ways to protect your system and your budget. It's a lot easier to catch a small leak during a routine check than to discover one when your AC has already stopped keeping up on a 95 degree day.
Think You Might Have a Refrigerant Leak?
If your system is running constantly, blowing warm air, or just isn't keeping your home comfortable the way it used to, don't wait for it to get worse. We'll come out, diagnose the issue honestly, check your warranty status, and walk you through exactly what needs to happen and why.
Cooling and Heating Specialists LLC is a woman-owned, family-operated HVAC company proudly serving all of Broward County and Palm Beach County from Lantana south through Boca Raton.
📞 954-729-9956 🌐 CoolingHeatingSpecialists.com ✉️ CHS.HVACPros@gmail.com
Licensed & Insured | CAC1824395 | EPA 608 Certified
