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Telltale Clues to Your Air Conditionerâs Life Span. The A/Câs age â The average air conditioner life span is roughly 15 years. If yours is over 10 years old, you can expect to see a steady loss of cooling capacity and efficiency. Older equipment is more prone to breakdowns too, so necessary repairs are more frequent.
Certain telltale signs indicate it's time to consider replacing heating and cooling equipment, or improving the performance of your overall system. Your heat pump or air conditioner is more than 10 years old. Consider replacing it with a unit that has earned the ENERGY STAR label. Installed correctly, these high-efficiency units can save up to 20 percent on heating and cooling costs. Your furnace or boiler is more than 15 years old.