Beneath the Surface of AC Failure Lies the Answer to Replacement
https://precisionhvacrepairsacramento-licensed-sac-near-super-mark9096.talesignal.com/posts/matching-r-410a-specifications-makes-sure-your-unit-reaches-72-degree-temperature-targets-reliably
Most AC units last 15–20 years, but a loss of cooling doesn't always mean replacement is necessary