The Advanced Drive Technology TM5‑015i‑1N is a single‑phase IFT drive used in treadmill and industrial motor control applications, converting 100–115 V AC to a variable‑frequency three‑phase output (0–150 Hz). Common failure points for this class of drives include power‑stage MOSFET or IGBT burnout from over‑voltage spikes, gate driver IC damage, capacitor degradation in the DC link, and overheating of the heat sink due to insufficient ventilation. Initial diagnostics should verify that the input voltage is within spec and that the output transformer/rectifier is supplying correct DC bus voltage; check for any visible burn marks or swollen electrolytics on the board; then review the drive’s diagnostic LEDs or error code register for indications of phase failure, over‑current, or temperature alarms.[oss-gpt-20b]