MY DOOR CLOSES DOWN TO ABOUT 8", THEN REVERSES. IT IS A DOUBLE DOOR, PRESSED BOARD, HEAVY. IF I DISCONNECT THE OPENER THE DOOR DROPS WITH A THUD. i DON'T THINK THE DOOR IS BALANCED CORRECTLY, AND THE SPRINGS ARE NOT BROKEN. COULD THE LACK OF BALANCE CAUSE THE DOOR TO REVERSE? IT'S INTERMITTENT. LIGHTS ARE CONSTANT, NO OBSTRUCTIONS. i HAVE THE DOWN PRESSURE SET TO MAX.