Diagnostic Readings Reveal When Your System Needs Replacement at 15 Years
https://precision-reputable-hvac.trexgame.net/ac-unit-replacement-costs-peak-at-40-percent-for-compressor-units-based-on-specification-data
\nHVAC replacement timing depends on measured diagnostic benchmarks—refrigerant levels, temperature differentials, electrical fault codes, and airflow capacity—rather than calendar years alone