Your EdgeStar Combo Washer / Dryer has sensors to monitor for safety and operational issues. One of these specific safety features is designed to prevent the door from being opened while the contents of the wash tub are hot. Typically, a door that remains locked will automatically unlock when the unit is given sufficient time to cool down. If your combo washer / dryer is cooled down and the door lock remains fastened, please unplug the unit from its power source, wait a few minutes and plug the cord back in. The door lock may release while the unit is unplugged or may release once the unit has been plugged back in.
PLEASE check to make sure that the water has been drained from the unit before opening the door.
If the door remains locked, you can manually override the locking mechanism by following the instructions in the below video.
If problems persist, please submit a service request.