Once HVAC equipment hits 15 years old, failure costs spike beyond $5,000 annually

https://precisionhvacrepairsacramento-licensed-sac-near-super-mark9096.talesignal.com/posts/manufacturer-coverage-determines-whether-repair-or-replacement-suits-devices-reaching-15-20-years

The $5,000 rule is a failure-risk threshold: once your HVAC system reaches age 15, running it beyond that point exposes you to replacement-cost shock far exceeding $5,000, plus the breakdown liability of a mid-cycle failure during Sacramento's