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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.
The average lifespan for an air conditioner is 10 to 15 years. Some air conditioners last up to 20 years. As interesting as these data points may be, they don't tell you the whole story. The issue is that a variety of factors affect the lifespan of an air conditioner.When you buy a new A/C unit, you may be given a rough estimate about how long it will last.ike any homeowner, you'd probably like your air conditioner to last for a very long time. After all, a decent unit represents a sizeable investment. When you consider the important role that an air conditioner plays in the indoor comfort of your home, however, the cost is well worth it.