The answer to 'how often to replace air handler' is that the recommended replacement interval for an air handler is typically 10-15 years, depending on usage and maintenance. Air handlers are a critical component of a home's HVAC system, responsible for circulating air throughout the home. Over time, the internal components like the fan motor, blower, and coils can wear out and become less efficient, leading to increased energy costs and potential breakdowns.
Regular maintenance like changing air filters and cleaning the unit can help extend the lifespan of an air handler, but eventually it will need to be replaced. Factors like the climate, how often the system runs, and whether the homeowner has pets or other indoor air quality concerns can also impact the replacement timeline. It's best to have a qualified HVAC technician evaluate the condition of the air handler and provide a recommendation based on its specific performance and your home's needs.