No drain usually comes up E20
it has to drain water within set time otherwise it stops and flashes E20
if you select spin program can you hear the drain pump running?.Does it make a buzzing sound?.Is something jammed in the drain pump impeller?.Did you connect it under a sink?.If you did did you remove the blanking cap before pushing the drain hose on?.is the drain hose kinked?.
lots of things to check
pump winding do fail and have been known to destroy pcb!!
ck
February 2012