The Etasis IFRP‑462 is a 460 W mini‑redundant power supply unit (PSU) with N+1 architecture, designed for industrial servers and control panels. Common failure points in this class include degraded fan operation or failure, output voltage regulation drift due to aging capacitors, and internal fuse blowouts from transient over‑current events; the redundant design may mask a failing primary module until both units fail. Initial checks should verify input AC voltage and current draw, confirm that both redundant modules are powered and reporting status via their LEDs or diagnostic port, and visually inspect for burnt components, bulging electrolytics, or loose connections before proceeding to component‑level testing.[oss-gpt-20b]