AC Refrigerant Leaks Explained: Causes, Signs, and Solutions
When your AC stops cooling, a refrigerant leak is one of the most common culprits—and one of the most misunderstood. At Fresh Air Flow, our Cherry Hill technicians diagnose refrigerant issues throughout South Jersey and the Greater Philadelphia area every season.
Understanding the signs of a refrigerant leak early can save you from system failure and a large repair bill.
TL;DR
AC refrigerant leaks don’t fix themselves. If your system isn’t cooling, is icing over, or is making a hissing sound, low refrigerant may be the cause. A professional diagnosis is the only way to find and fix the leak.
Key Takeaways
- Refrigerant leaks are a repair issue, not a maintenance issue
- A freon leak in AC systems get worse over time and can damage the compressor if ignored
What Is Refrigerant and Why Does It Matter?
Refrigerant is the substance that allows your AC to absorb heat from inside your home and release it outside. Without the correct charge, your system cannot cool the air.
Contrary to what many homeowners believe, refrigerant is not consumed like fuel. A properly functioning system should hold the same charge indefinitely. If your system is low on refrigerant, it means there is a leak somewhere in the system.
Common Signs of Refrigerant Leaks
Here are the refrigerant leak symptoms we frequently find during service calls across Cherry Hill and surrounding communities:
- Warm air coming from the vents
- Ice forming on the unit
- Hissing or bubbling sounds
- Longer cooling cycles and rising energy bills
What Causes a Refrigerant Leak?
Refrigerant leaks typically result from:
- Corrosion on copper refrigerant lines, which is common in older systems
- Vibration over time that causes fittings and joints to loosen
- Factory defects in newer systems
- Physical damage to the unit from lawn equipment, storms, or poor installation
In our experience serving Cherry Hill and the surrounding South Jersey area, the team at Fresh Air Flow has found that older systems with copper components are a frequent source of refrigerant leaks.
How to Tell If Your AC Is Low on Refrigerant
The only way to accurately determine refrigerant levels is with professional diagnostic equipment. Our NATE-recognized technicians use manifold gauges and leak detection tools to pinpoint exactly where a leak is occurring and how severe it is.
We do not recommend recharging a system without finding and repairing the leak first. That approach only delays the same failure and risks compressor damage.
The Cost to Fix Refrigerant Leaks
Refrigerant leak repair costs vary depending on the location of the leak, the refrigerant type your system uses, and whether any components were damaged. Systems using older R-22 refrigerants are more expensive to service because that refrigerant is being phased out.
At Fresh Air Flow, we provide transparent diagnostics and upfront pricing before any work begins. All AC repairs come with our two-year warranty, and financing options are available if a larger repair is needed.
FAQs
Can I add refrigerant to my AC myself?
No. Handling refrigerants requires EPA certification.
How long can I run my AC with a refrigerant leak?
Running a system that is low on refrigerant strains the compressor, which is the most expensive component in your system. We recommend turning the unit off and scheduling a service call as soon as you notice the symptoms of a refrigerant leak.
Is a freon leak in an AC dangerous?
Modern refrigerants used in residential systems are not toxic at normal exposure levels, but a leak in a confined space can displace oxygen and cause symptoms like dizziness or nausea. If you suspect a significant indoor refrigerant leak, ventilate the area and call Fresh Air Flow.
Does Fresh Air Flow service all AC brands for refrigerant leaks?
Yes. We are a Carrier Factory Authorized Dealer and carry Carrier equipment for AC replacements, but our technicians are trained to diagnose and repair any make or model throughout Cherry Hill and South Jersey.
Schedule AC Refrigerant Leak Repair with Fresh Air Flow
A refrigerant leak will not resolve on its own. The sooner you address it, the less likely you are to face compressor damage or a system replacement.
Fresh Air Flow is proud to serve Cherry Hill, Pennsauken, and communities across South Jersey and the Greater Philadelphia area. We offer same-day service, honest diagnostics, and repairs backed by a two-year warranty. Contact us today to schedule your inspection!