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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.
Example: a Carrier Compressor/Condenser Serial# 1389E54894 on a compressor unit. Air conditioning equipment age from serial number for the example above, the equipment was made after 1980. The first four digits of the serial number are week and year of manufacture, in this case, week 13 of 1989. FROM MODEL # â Air conditioning equipment capacity from model number.