de or DE  mean a drainage error,  so check all the drainage  piping is clear, check the pump for any  obstruction the machine is not clearing the water in a specific time so throws up the de DE code.
you must get rid of the EXCESS water FIRST by lowering drain hose down into a empty  bowl,the water will flow out by gravity if slow suspect filter blocked if quick check the pump.
                
 wirecutterman
                
 May 2010