@Jim DaveyIt is standard, the genuine torch allows you to access the background level 1 and level 2 menus but they were never necessary for us to meddle with so I changed the sockets. I did however link the wires and left the old socket connected inside the machine cable tied inside a plastic pouch so it would be an easy job to reinstate the original fittings if the need ever arose.
Have you got a Long downslope time selected? It’s a small aluminium potentiometer just below the 8 segment LED voltage display. If that’s enabled for a long duration it will seem like the weld is carried on.
These pots often break as they are quite fragile.
I’m sorry I don’t have access to any of that information as I’m currently at home isolating with what I hope turns out to be just a cold.