Fault route
TIG Foot Pedal or Remote Current Not Working Diagnostic
A TIG remote-current route for machines where the torch starts but foot pedal or remote current control does not behave correctly.
Quick Answer
Remote current faults should be separated from output-stage faults. Check panel/remote selection, foot-pedal switch, remote potentiometer signal, connector wiring and control-board command input before diagnosing the inverter.
Diagnostic path
Panel/remote selector → pedal switch → remote potentiometer → connector signal → control-board current command → feedback/output response.
Evidence table
Panel control works but pedal does not: remote path. Pedal starts arc but current fixed: remote potentiometer signal. Command changes but current does not: feedback or output-stage response.