How Long Does AC Refrigerant Typically Last?

Refrigerant is the key component that allows your air conditioner to cool your home, but how long does AC refrigerant typically last? Unlike fuel or oil, refrigerant doesn’t get used up over time. In a properly functioning system, it should last the entire lifespan of your AC. However, leaks and other issues can cause levels to drop, reducing cooling efficiency. Here’s what you need to know about refrigerant, how long it lasts and when to get it checked.

Signs of Low Refrigerant and When to Recharge

1. Does AC Refrigerant Need to Be Refilled Regularly?

Many homeowners assume refrigerant needs regular refilling, but a sealed AC system should never run out of refrigerant unless there’s a leak. If levels drop, it’s a sign of a problem that needs professional repair.

2. How Long Does AC Refrigerant Last?

• In a properly maintained system, refrigerant should last 10–15 years, which is the average lifespan of an AC unit.
• If refrigerant levels are low, the system may have a leak that needs to be repaired before refilling.
• AC units do not “use up” refrigerant like fuel—it only escapes due to leaks or damage.

3. Signs That Your AC Has Low Refrigerant

If your AC isn’t cooling properly, it could be due to a refrigerant issue. Common warning signs include:

• Warm air coming from vents despite the AC running.
• Higher energy bills due to the system overworking.
• Hissing or bubbling sounds near the refrigerant lines.
• Ice buildup on the evaporator coils from improper cooling.
• Longer cooling cycles, meaning the system struggles to reach the set temperature.

4. What Causes AC Refrigerant Leaks?

Refrigerant leaks don’t happen overnight. The most common causes include:

• Corroded or damaged coils that develop small holes over time.
• Loose or faulty connections in refrigerant lines.
• Improper installation, leading to small leaks from the start.
• Physical damage from pests, extreme weather, or impact.

5. What to Do If Your AC Has Low Refrigerant

If you suspect low refrigerant, don’t just refill it—find and fix the leak first. Steps to take include:

• Scheduling a professional inspection to check for leaks.
• Repairing damaged components before adding new refrigerant.
• Testing the system after refilling to ensure proper cooling.

Keep Your AC Running Efficiently for Years

So, how long does AC refrigerant typically last? If your system is well-maintained and leak-free, it should last as long as your AC unit. However, if you notice signs of low refrigerant, addressing the issue early is essential to avoid costly repairs. Contact us today for AC inspections, leak detection, and refrigerant recharges to keep your cooling system in peak condition.