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375 extreme plasma cutter problem

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  • 375 extreme plasma cutter problem

    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:
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