Inverter 50a Amp Plasma Cutter, Air , Cut50d 110/220vac "chinese working" Questions

...chinese made (generic) 3-1 machine(plas,tig mma) .It has run for about 10 minutes then the high frequency start for the plasma stopped working. Everything else works fine. I have replaced a capacitor ...

...chinese machines suffer from loose connections so it may even be a loose connection to a component rather than a faulty component. by the way, is it any good when it's working? i am interested in ...

...chinese plasma cutter cut50d.the unit comes on and the fan runs but pull trigger no spark or air.i did a continuity check at the cable and it has continuity.plus at the switch when i pull the trigger ...