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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.
Unfortunately, air conditioners donât live as long as people, and in the brutal conditions of Phoenix, Arizona, air conditioners can have remarkably short lives without proper care and maintenance. The average lifespan of an air conditioner is anywhere from 8 to 15 years, but itâs hard to say exactly how long any given air conditioner unit will last. The Biggest Factors in Air Conditioner Lifespans Certain factors can influence how long your air conditioner survives, including the size of the air conditioner unit, your duct design, the amount of use and how much maintenance your unit receives.