Past 12 Years Old Units Often Cost Less to Replace Than Repair
https://precisionhvacrepaircorner.huicopper.com/sizing-accuracy-determines-whether-you-ll-need-hvac-replacement-within-15-years
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