The answer to 'lifespan of air conditioner' is that the average lifespan of a central air conditioning unit is 15-20 years with proper maintenance. However, the actual lifespan can vary depending on factors like the quality of the unit, how often it's used, and how well it's maintained.
Well-maintained air conditioners that are used in moderate climates can last up to 20 years or more. But units in harsher climates or that don't receive regular maintenance may only last 10-15 years before needing replacement. Proper annual tune-ups and filter changes are key to maximizing the lifespan of your AC system.