Hello everyone, I've recently got hold of a Kempotig 250 AC/DC and it has been working fine for about 3 weeks of light use. Today when i was doing some low current work on DC (neg) it stopped functioning properly. To elaborate i was welding away all fine, then I stopped to change position and tried to re-start the arc and got nothing. No high freq, no gas, nothing. I was using a foot pedal and thought that could be the problem, but taking that out of the loop didn't fix it. Then i noticed on the display the amps just showed zero. I've tried flipping all the switches back and forth etc to see if its a bad connection. I can get the display to show a massive 4 amps by turning the dial right up, but it still wont start. There is no (audible) sound of solenoids above the fan and cooler noise. The cooler is pumping water, not very much of it, but there is a steady trickle i would say. Can anyone start to help me out on this one? Thanks in advance.