A central air conditioner typically lasts 7–15 years. However, usage, maintenance and environmental factors can shorten or extend its lifespan.
Average lifespan of a central air conditioner
A central air conditioner typically lasts between 7 and 15 years, with climate, maintenance and usage influencing longevity.
What affects how long a central air conditioner lasts
The lifespan of a central air conditioner depends on factors such as cooling load, filter and coil maintenance, refrigerant quality and installation. These elements influence wear and can either extend or reduce its typical life.
Signs a central air conditioner needs replacing
Common signs that a central air conditioner is nearing the end of its life include reduced cooling, rising energy costs, frequent repairs or unusual noises. Noticing these cues helps you plan for replacement.
How to make a central air conditioner last longer
To extend the life of your central air conditioner, follow the manufacturer’s maintenance recommendations. Regular cleaning, proper usage and timely minor repairs can help it serve longer.
When replacement is necessary
If your central air conditioner shows persistent failures, safety issues or is beyond its typical lifespan, replacing it with a new model is usually more cost‑effective than repeated repairs.