I HAVE A  HELIX 7 ONLY 2ND SEASON OF USE I HAD IT INSTALLED PROFESSIONALY IT WILL WORK AND OUT OF NO WHERE JUST TURN OFF MOST THE TIMES IN ORDER TO POWER IT BACK UP I HAVE TO DISCONNECT FROM THE BACK AND PLUG BACK IN WHICH OF COURSE IS CRAP HAS ANYONE ELSE HAD THIS PROBLEM? DEFECTIVE UNIT, OTHERWISE IT WORKS FINE?