Daewoo dwd-wd3011ww why would water come out of what looks to be a vent on the back of washer

SOURCE: Daewoo washer - LE error message

replace the lock switch

SOURCE: WASHER DOOR STUCK

Not all that uncommon on some front loaders. Yes, it is trying to lock and unlock. You can try two different things that might work. 1) Unplug the unit and let it set for 5 minutes and see if it then unlocks itself. Some units have a bi-metal timing that can take from 2-4 min. to release after the spin stops. 2) Wake up unit by pressing start or any button that starts the lock clicking. Have your hands on the door with some gentle pressure because if it unlocks you can pull the door open. Sometimes these things get mixed up and lock, unlock, and lock again. Once you get it open it usually clears up and does not happen very often.