Past 12 Years Old Units Often Cost Less to Replace Than Repair
https://precision-bonded-hvac.iamarrows.com/hvac-systems-typically-last-15-to-20-years-with-same-day-repair-support-nearby
Whether repair or replacement makes financial sense depends entirely on your unit's age and documented failure-curve benchmarks. Units under 10 years old typically merit repair; those past 12 years often cost less to replace