Identifying which parts fail between 12 and 17 years determines repair versus replacement

https://sacramento-precision-hvac-affordable-sac-sac-ca5294.zenbloomer.com/posts/manufacturer-coverage-determines-whether-repair-or-replacement-suits-devices-reaching-15-20-years-2

Most HVAC systems last 12 to 17 years, but that lifespan depends entirely on which components fail first