DE or dE?
DE = Drain Error: Water has not drained enough within 5 min
dE = Door Error: The Start/Pause button is pressed with the door open OR The door switch is out of order.
Check you've not knocked a wire off the door switch and that the latch is correctly installed and able to operate the door switch.
Service manual here:
http://diagramasde.com/diagramas/otros/WD%28M%29-1090_1098_1190_1290_1390_6590_8090.pdf
Suggest you download and hive away somewhere safe and, if you use Gmail already, use Google Drive as secure storage.
X, March 2015