I finally figured out what was going on. You guys were right and so was the way I set up my 230v outlet but what was happening was that a little cooling fan that was mounted on a side panel, that I had to remove to get the unit in my truck, had pulled the two small terminals together when the panel was taken off.
every time I pulled the gun trigger it shorted out the 400 ma fuse. When I called the company that imported this unit into the US the number was.......you guessed it......no longer in service. It is a nice unit but man if I ever need parts I'm screwed. BTW, MATCO acted like it was not their responsibility to provide their customers with any kind of repair number or address. Something to think about when you buy from a middle man like MATCO. Once again thanks for the assistance. You guys are the best.
Roland, you and I think alike. I took the panel cover off to see if they truly are the same but the went to different lug strips. However they were both bolted to the same metal box with no insulation in between!
Sam, let's make that "Old Sparky"!