Hi there,I have a problem with my welder in that it doesn't feed any wire at all,the machine powers up(lights on,fan running etc)but when the trigger is pulled on the torch I only get a click,I've tried a direct power feed to the wire feed motor and it works OK so I'm suspecting the pcb,does anyone know of any details on repairing these or where I can obtain one from at a reasonable price ?...many thanks Steve