Tourch dies after 2.5 -3 seconds

I have been cutting the same way since December. Yesterday I had a what could best be described as a pop and a little bit of a blue spark shower. Now my torch will only cut for 2-3 seconds. If I restart the torch it will still only run for 2-3 seconds. I thought it might be the controller but when I shut the controller down and fire the touch manually the same thing happens. I tried it three times with the same results. I changed the tip electrode and swirl ring still the same results. It has to be something in the cutter or the torch, as it was doing this with the CNC turned off. I know practically nothing about plasma cutters accept how to use them. Any ideas would be helpful, Not sure if it’s possible to wear out a plasma cutter. I’ve done 1000s of cuts.

Help

Don

Almost forgot the cutter is a Razerweld 30

After reading my post I went back and checked the ground. Moving it allowed the torch to remain on manually. Hope it works with the CNC. Lesson learned move your ground occasionally.