Past 12 Years Old Units Often Cost Less to Replace Than Repair
https://precision-hvac-repair-sac-apartment-sac-near-liahona-chapel3145.scriblorax.com/posts/understanding-hvac-lifespan-through-measured-response-time-standards-and-maintenance-windows
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