My coworker has a Miller Aerowave TIG welder. It did work
previously. Now it does not work. The amps display shows a very HIGH
number that cannot be adjusted with amperage knob. It does weld at
that extremely high setting and melts welding rods.

I have some pictures of the welder and board LEDs at:

https://www.machinerymoverschicago.c...elder-Problem/

Would anyone suggest a solution? Also does anyone know a good welder
repair shop on the Chicago area? Thanks