The answer to 'how long does air handler last' is that a typical air handler has a lifespan of 10-15 years with proper maintenance. Air handlers are the indoor component of a central air conditioning system that circulates air throughout your home. They contain the blower fan, air filter, and coil that cools the air. With regular professional tune-ups and filter changes, most air handlers can provide reliable service for over a decade before needing replacement.
However, factors like the unit's quality, usage, and environment can impact its longevity. Air handlers in homes with poor indoor air quality, frequent temperature swings, or heavy use may wear out sooner. Proper installation and annual maintenance by an HVAC technician are key to maximizing the lifespan of your air handler.