Your air conditioner is a major investment, so it’s fair to wonder how many summers you’ll get out of it. Most central air conditioners last somewhere between 12 and 17 years, and how close you get to the top of that range depends heavily on maintenance and how hard the system works through Spokane’s hot, dry summers.

The Average AC Lifespan

A well-maintained central AC in our climate typically runs 15 years or more. Systems that are neglected, oversized, or poorly installed often start failing closer to the 10-year mark. Ductless mini-splits can last a bit longer because each unit carries less of the load.

What Shortens an AC’s Life

Skipped maintenance

Dirty coils, clogged filters, and low refrigerant force the system to work harder and wear out sooner. A yearly tune-up is the single best thing you can do to add years.

Poor airflow

Blocked vents, undersized ductwork, or a filter that never gets changed make the compressor strain, which is the most expensive part to replace.

Wrong size for the home

An AC that’s too large short-cycles and wears out its parts; one that’s too small runs constantly. Correct sizing at installation matters more than most people realize.

Signs It’s Time to Replace

Watch for rising energy bills, uneven cooling, frequent repairs, or a unit that still uses older R-22 refrigerant. Once repair costs start approaching half the price of a new system, replacement is usually the smarter move.

Get More Years Out of Your System

Routine care is what separates an AC that quits at 10 from one that’s still going strong at 17. If your system is aging or you’re weighing repair against replacement, we can give you an honest assessment. Learn about AC replacement or call (509) 891-5110.