Pricing Tiers Reveal When Repair Costs Justify Complete AC System Replacement
https://precision-anytime-hvac.cavandoragh.org/diagnostic-readings-reveal-when-your-system-needs-replacement-at-15-years
You know your AC unit needs replacement when repair labor rates and part-cost tiers show that fixing the system will exceed 50–60% of a new unit's price within a year, combined with age over 12–15 years and declining efficiency