The AWS‑200 is a microprocessor‑controlled TIG/PLASMA welding system that integrates a precision DC power supply, wire feed servo, and optional orbital or vertical weld heads for tube‑to‑tube splicing. Common failure points in this class include the high‑current power supply modules (overheating or tripping), servo drive electronics (faulty gearboxes or encoder loss), and arc distance control circuits (sensor drift or wiring insulation breakdown). For initial troubleshooting, verify that the main power supply is delivering the rated voltage and current, inspect all cable connections for corrosion or loose contacts, and review any error codes displayed on the control panel to isolate the affected subsystem.[oss-gpt-20b]