How Often Does AC Refrigerant Need to Be Replaced — What It Means
If your AC isn’t cooling like it used to, low refrigerant could be the problem. But here’s the thing—AC refrigerant isn’t like oil in a car. It’s not supposed to run out. So when you ask, how often does AC refrigerant need to be replaced?, the real answer is: never—unless there’s a problem.
At FERSA HVAC Heating & Air, we help homeowners across Mesquite, Dallas, and beyond figure out whether it’s time to refill refrigerant—or repair the real issue behind the leak.
What Is AC Refrigerant and Why Is It Important?
Refrigerant is the chemical that absorbs heat from your home and releases it outside. It cycles through your AC system, cooling your air without getting “used up.” If your unit is low, that usually means there’s a leak.
Without the right amount of refrigerant, your AC system won’t cool your home effectively. It might freeze the coils, overwork the compressor, and end up costing you more on your energy bills as it struggles to keep up.
How Often Should You Replace AC Refrigerant?
The short answer: only when there’s a leak.
If your AC is properly installed and sealed, the refrigerant should last the entire life of the unit. However, if you notice signs of low refrigerant, it’s time to call in a pro.
Common signs include:
- Warm air blowing from the vents
- Hissing or bubbling sounds
- Ice on the coils or refrigerant lines
- Longer run times or higher energy bills
If you notice these issues, we’ll check your system and repair the leak before refilling the refrigerant.
When to Repair vs. Replace
If you’ve had to replace refrigerant more than once or if your AC is over 10 years old, it might be time to consider replacement.
Consider a new AC unit if:
- The cost of refrigerant is rising (especially if your system uses R-22)
- Leaks keep coming back
- The system is inefficient or outdated
- You’re also seeing issues with the compressor or airflow
Learn more in our complete guide on When to Replace vs. Repair Your AC Unit.
FAQs – AC Refrigerant Questions
Can I refill my own AC refrigerant?
No. Refrigerant must be handled by a licensed HVAC technician due to EPA regulations and safety concerns.
How long does a refrigerant refill last?
If the leak is fixed properly, the refrigerant should last the rest of your system’s lifespan.
What refrigerant does my AC use?
It depends on the age of your system. Newer systems use R-410A, while older ones may use R-22, which is being phased out and more expensive.
Need Help with Refrigerant or AC Repair in Mesquite, TX?
Don’t ignore signs of a refrigerant issue. At FERSA HVAC Heating & Air, we’ll check your AC, fix leaks, and recharge the system safely. If it’s time to replace your unit, we’ll help you find an energy-efficient option that fits your home and your budget.
Serving Mesquite, Dallas, Garland, Rowlett, Plano, McKinney, Richardson, Allen, and more.