The Topedm MCP001‑AA is a compact motor control panel used in industrial applications to regulate speed and direction of AC motors, featuring built‑in contactors, overload relays, and standard control switches. Common failure points include tripped or burned contactor coils, failed overload relay contacts, degraded power supply capacitors, and damaged wiring harnesses due to vibration or moisture ingress. First‑check diagnostics: verify input voltage and polarity at the panel terminals; inspect the contactor coil resistance and test the overload relay for continuity; visually examine all relays, fuses, and capacitor electrolytes for signs of wear or leakage.[oss-gpt-20b]