What's going on??

On Super Wash or Permanent Press cycle, after water fill is complete, washer motor and agitator will not start running if time cycle is set for anything greater than six (6) minutes. It just sits there and does n othing, the timer doesn't advance - nothing happens. When timer is manually advanced to six minutes, washing starts and completes as normal. Whirlpool model LSR8233EQO, serial number CG3703669.