Units Older Than 15 Years Often Signal Time for Professional Replacement Assessment
https://precision-hvac-sacramento-crew-sac-near-sutter-park1477.evergrovio.com/posts/compressor-and-capacitor-failure-are-the-primary-indicators-your-ac-needs-replacement
Whether replacing an old AC unit is worth it depends primarily on your system's age and what to expect at different equipment lifespans