I was cutting the 4th sheet of a 35 sheet job when suddenly I got an 0-52 torch connection error. I reset and started cutting again only for it to stop with the same error. I'll turn it off and back on again and it will cut for a bit then the same error again. All my connections are good, no bent pins or anything and my unit is hardwired in so it isn't a dirty plug issue. Anyone have any experience with this? TIA