Continuing Repairs on 18-Year-Old HVAC Units Traps You in Escalating Failure Liability

https://precisiontrainedhvac.wpsuo.com/modern-refrigerant-standards-determine-how-long-your-hvac-should-run-daily

Most HVAC systems reach the end of their practical lifespan between 15 and 20 years, and attempting to repair units beyond that window creates sunk-cost risk: you invest in repairs that fail again weeks later, repeat-failure exposure multiplies, and