So, as per the subject really. We have a Lorch MicorMig 400 with a SWF and the control-pro panel. It randomly and intermittently stops for no apparent reason when laying down a bead. It's just started doing it. There seems to be no rhyme or reason to it. Nothing is displayed on the panel and the power is fine so not a fuse going. I guess it's a bit like it's detected something and decided to stop welding?! It's a brand new Binzel MB501 torch. We're using it in manual mode. The machine is an older machine bought secondhand. It's still in warranty but that takes time etc and we need it to just work...now. Any suggestions where to start?