Hi. Thanks for the replies. Yes, I have the ceramic ferrules and have been using them. Also, it's definitely connected to a 3 Phase supply.

Hi Everyone. Thanks for your help in advance. I got a second hand Nelson Arc Lite Plus Stud Welder recently from an auction. I'm keen to use it but I'm not experienced with this type of welder and having a problem. Unfortunately I can't find much about this type of Nelson welder. It's not on the Nel...