i bought temco xr3 phase converter for my printing cutter 3phase ,7years ,running no problem, last week ,i took out two source line 120v , then reinstall, turn on i heard a spark sound turn on cutter, feel power not enough,then turn off,check two source line then turn on , also heard spark,check again , turn on no spark machine running but output power not enough to operate cutter, paper cutter chanllenge 265 hb 3hp, is there any component burned,,,turn on cutter power on sound small not like usually , any advice are welcome .thanks