Ceia D09329 0057 00208SCD43 is a walk‑through security metal detector that uses electromagnetic induction to detect ferrous and non‑ferrous metals in passing personnel. Common failures on this class of units include power supply degradation (transformer or rectifier failure), coil winding insulation breakdown, and controller board faults such as blown fuses or damaged ICs; these often manifest as no detection, false alarms, or intermittent operation. First‑check diagnostics: verify 120 V AC input and correct DC rail voltages on the control board, inspect the induction coils for visible damage or corrosion, and review any diagnostic LEDs or error codes displayed by the unit’s front panel.[oss-gpt-20b]