When I set my xmt 304 to 150 amps and VS mode and my Hobart Hefty suitcase feeder to CV and try to run some wire it burns way too hot. When I check the amp meter it says 274 amps. Also when I put in stick mode to stick weld 7018 at 125 amps the machine also burns way too hot. If I turn it down to 50 amps it seems to run okay.Any input to this problem would be greatly appreciated.James