Welder help,Please!!!

[brans72]

OK guys I know some might think this belongs in body shop but I know it will get more traffic here! I got a free Fire power fp120 2002 model from Thermodyne with cart,tank and gauge from this guy I work for on my days off. The welder was in a fire but did not get burnt up,instead got soaked by water from sprinklers. I am trying to figure out what part inside might be the cause that I get no spark from it when it is running. Unit powers up,The Voltage knob seems to work,and wire speed works. So anyone wanna try to help me out? Thanks Brandon