The Advanced Drive Technology TM5‑015i‑1P (AD‑22178‑H‑B‑1.44) is a 3‑phase variable frequency drive/induction motor controller rated at 6 A, commonly used in industrial drives and treadmill motors. Common failure modes include power supply capacitor burn‑outs or voltage spikes, overheating of the VFD core due to inadequate cooling, firmware corruption leading to lock‑up or error codes, and I/O module faults such as broken communication lines or damaged input/output contacts. First‑check diagnostics: verify the 48 V DC bus and AC input voltages are within spec; inspect all capacitors for bulging or leakage and replace any failed units; review the drive’s diagnostic LEDs or serial log for error codes, then perform a visual inspection of the PCB for burn marks or solder joint cracks.[oss-gpt-20b]