Power-One PFC375-1015 DC power supply

The Power‑One PFC375‑1015 is a 375 W switching power supply with active Power Factor Correction and dual regulated outputs (15 V @ 24 A plus 3.3 V/5 V rails). Common failure modes on this model include degraded output capacitors, fan or heat‑sink overheating, and loss of the PFC controller IC, which often manifests as voltage sag or a “power‑fail” status flag. First‑check diagnostics should verify input AC integrity and correct line voltage, measure the 15 V rail for proper regulation and ripple, and inspect the output capacitors and fan for signs of thermal damage or failure.[oss-gpt-20b]

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