What is the average lifespan of a Rheem AC unit?

What is the average lifespan of a Rheem AC unit is 15 to 18 years with normal residential use and proper maintenance, which is similar to industry average for AC units of 15 to 20 years and slightly shorter than premium brands like Trane and Carrier at 16 to 20 years but longer than some budget brands at 12 to 15 years. Rheem AC units including RA14 14 SEER single stage, RA16 17 SEER two-stage, and RA20 20 SEER variable speed are built with standard Copeland scroll compressors and plate fin coils designed for 15-year life. Life depends heavily on climate, usage, and maintenance. In hot climate like Texas and Florida where AC runs 8 to 10 months per year, life is 12 to 15 years due to more run hours and thermal stress, while in moderate climate where runs 4 to 6 months, life is 15 to 18 years. Factors that shorten life include lack of annual maintenance with coil cleaning twice yearly, dirty filter causing high head pressure that strains compressor, and poor installation with incorrect refrigerant charge that reduces efficiency by 10 to 20 percent. Common parts that fail first include capacitor after 5 years at 150 to 300 dollars installed, contactor after 7 years at 150 to 250 dollars, and compressor after 12 to 15 years at 1,500 to 2,500 dollars. Rheem offers 10-year parts warranty when registered within 60 days. To maximize life, change filter every 2 to 3 months and clean outdoor coil monthly.