Is the door locked and the Add A Garment light off?
If the Add A Garment light is off, then the washer door will unlock after the Pause/Cancel button is pressed twice. The door will not immediately unlock while the cycle is running due to a possible high-water level in the washer, high-water temperature, tumbling or spinning. It may take up to five minutes for the washer to stop spinning and draining before the door will unlock. You will hear the door click when it unlocks.