The Power Systems Inc. 225X‑65 is a modular industrial DC power supply rated at 65 V output with a typical current capacity of 3–4 A, commonly used to power servo drives and control cabinets. Known failure modes for this model include degraded electrolytic capacitors on the high‑voltage side, burnt fuses or protection diodes, and thermal runaway from over‑current conditions; these often manifest as no output voltage, excessive heat, or intermittent operation. First‑check diagnostics: verify input AC voltage and polarity, measure output rail voltages with a multimeter, inspect for bulging or leaking capacitors and check fuse integrity, then review any diagnostic LEDs or error codes on the unit’s front panel.[oss-gpt-20b]