Air conditioning (AC) units generally last between 15 to 20 years when properly maintained. The lifespan can vary depending on factors such as the type of AC unit, the climate where it is used, how frequently it is run, and how well it is maintained. For example:
- Central air conditioners typically last 15 to 20 years.
- Ductless mini-split units can last between 15 to 30 years.
- Window AC units usually last 5 to 15 years.
- Portable AC units have a shorter lifespan of around 5 to 10 years.
Maintenance such as regular tune-ups, cleaning or replacing filters, and addressing minor issues early can extend the lifespan of an AC unit. The lifespan may also be shorter in warmer climates due to higher usage. If an AC unit reaches the end of its lifespan, it may struggle with efficiency, and replacement parts might become unavailable. At that point, it is usually better to replace the unit to maintain good cooling performance. In summary, with proper care, expect most central AC units to last about 15 to 20 years, but this can vary based on usage, climate, and unit type.
