It was simple, I just heated up the 2 110v jumpers and removed them with tweezers, then put 1 back across the 240v contacts with some silver solder, once the soldering iron was really hot this only took 20 secs or so. I then filed down the solder (as it pooled a bit) on the reverse side of the board so it would slide back into the VAC case.......Dusty would be proud!!