The machine is a Kemppi MLS 2300 and this is what's happening; I am welding along and at the end when I take my foot off the pedal, the arc keeps 'running on' at low amps. The only way I can stop it is to stomp on and off the pedal a couple of times until it stops. Or of course, just pull the torch away but that is obviously not ideal. This is a bit intermittent and only seem to happen on AC and when I use the pedal. There are lots of welding geniuses here so I am hoping to enlist you all for some good advice. Please help....anyone.... Moderators; if this should be in the Kemppi machine forum, can you please move it?