Model hub
WSM-315 DC Pulse TIG Welder Repair Hub
A model-level hub for WSM-315 TIG welders, connecting panel command, gas/HF timing and current-control diagnostics.
Quick Answer
The WSM-315 hub groups TIG timing, panel command, control board, HF arc-start and current-control pages into one model path.
- Start from the visible behavior: no HF, wrong 2T/4T timing, no gas timing, current-control mismatch or panel setting issue.
- Use control-panel and control-board pages before replacing HF board or power-stage parts.
- If gas works but HF is missing, follow the no-HF start route before touching the output stage.
WSM-315 repair routes
Choose the route by symptom layer.
WSM-315 control panel2T/4T, pre-flow, post-flow, start, upslope and crater settings.WSM-315 control boardTorch input, gas output, HF command and current command.WSM-315 HF boardHF relay, HV pack, discharge and arc-start output.WSM-315 no HF arc startGas works but high-frequency start is missing.TIG timing routeGas/HF/2T/4T/post-flow sequence problems.Current-control panel faultsPanel setting, command, feedback and power response split.
WSM-315 symptom routing
| Symptom | First layer | Next page |
|---|---|---|
| No HF but gas works | HF command and HF board | WSM-315 no HF arc start |
| Wrong 2T/4T behavior | Torch switch / panel mode / control board | TIG timing route |
| Gas timing wrong | Pre-flow/post-flow setting and gas output | Control panel + timing route |
| Current knob has no effect | Panel command or control-board input | Current-control panel faults |