HVAC systems over 15 years old fail at double the repair rate of newer units

https://sacramentoprecisionhvac-local-sac-near-mcdonald-hearing-aid2826.readspirex.com/posts/federal-refrigerant-phase-outs-cut-10-15-year-lifespans-short-through-regulatory-compliance

The frequency of HVAC servicing depends on your system's age and documented failure-rate metrics