I have a spa with a  IN.YJ-2 control board.  Everything works except when motor high speed is selected, the motor only runs for 2-3 seconds and then stops.  After 5 or so seconds it tries again and runs for 2-3 seconds and stops.  I think the high speed portion of the pump motor has failed and is kicking out on over current.  It also makes a funny noise like the windings are loose.  Motor and pump work fine when in circulation mode.  Anybody have thoughts?