A new central air conditioner typically lasts 15 to 20 years. However, several factors influence this lifespan including:

Quality of installation: Proper sizing and professional installation are crucial.
Regular maintenance: Annual tune-ups and filter changes significantly extend the unit’s life. Subscribe to get our Annual Maintenance Reminder.
Usage: Units in hotter, more humid climates (like Michigan summers!) that run more frequently may have a slightly shorter lifespan than those in milder areas.
Brand and model quality: Higher-end units often use more durable components.

With diligent care, some units can even exceed 20 years. Conversely, neglecting maintenance or having a poorly installed unit can drastically reduce its lifespan.