My 375 extreme(black torch) I have owned for several years now wont start the pilot arc, I fired it up one day and it spit out a few weird sparks but not the normal plasma, then nothing, just air. No lights on but the normal power indicator, and it will try to start/spark if I touch the tip to the grounded work, but not cut. I checked the tip and it was well worn so I ordered some new ones. Well, installed a new tip and nozzle yesterday and same thing, any ideas? Thanks in advance. The unit looks like the one in the link below:
http://www.equipmentworld.com/articl...0-spectrum.jpg