A central air conditioning unit typically lasts between 15 to 20 years with proper maintenance. Factors like climate, usage, and upkeep can affect its lifespan. Regular servicing, timely filter changes, and professional inspections help extend the unit’s efficiency and performance. If your system is over 15 years old and facing frequent issues, it might be time to consider a replacement. Newer models are more energy-efficient and environmentally friendly, potentially saving you money in the long run. Learn more about signs of AC wear and when to upgrade on my blog. Stay cool and informed—bookmark and share if you find it helpful!