AEG LAVAMAT 16810 UPDATE WONT EMPTY?

Program flashing E20 Found the filter was blocked, everything has been checked, pump working and all pipes clear but it still stops on its empty cycle and flashes E20. I have been told it needs a code to reset the program, AEG wont give me this information, surprise! surprise! they say i need an engineer, i'm blowed if i'm going to pay for an engineer to press a few buttons, this information should be in the manual, is there anyone that can help.