The average operational lifespan of a residential central air conditioner compressor is 10 to 15 years, provided the system receives regular annual maintenance, clean air filters, and proper refrigerant charges. The compressor is the heavy-duty heart of your HVAC system, and its longevity depends heavily on operating conditions. Frequent short-cycling, dirty condenser coils, electrical power surges, and running with low refrigerant can drastically shorten a compressor's lifespan, often resulting in premature motor failure. Verification: Review maintenance logs and listen for unusual grinding or humming noises from the outdoor unit.
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