The Chuo Electronics HVS‑02A is a Class II industrial AC‑to‑DC power supply rated at 24 V DC and 1.5 A output, commonly used in servo drive panels and motor control enclosures. Typical failure modes for this model include over‑temperature shutdown due to fan or heatsink blockage, capacitor degradation causing ripple or voltage drop, and transformer winding insulation breakdown leading to shorted secondary windings. First‑check diagnostics: verify input AC voltage and polarity, measure output DC voltage with the load disconnected, inspect the heat sink and fan for dust or mechanical failure, and check for any visible signs of component burn or bulging electrolytics before proceeding to internal board inspection.[oss-gpt-20b]