Ah did a little more research!
I did a little bit of googling and it seems Electrolux's European machines display error flashes in the form of hexadecimal codes. More modern machines have displays so do not need to flash codes in pulses.
So, instead of counting 0,1,2,3,4,5,6,7,8,9,10,11,12
Count: 0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F
Error codes all start with "E" so, they just ignore E.
11 flashes = B
You need to count for 1,2 or 3 flashes after the 11 flashes for the finer detail.
So, the error code you're getting is
EB something..
EB1 = Incorrect mains frequency
EB2 = Mains voltage too high.
EB3 = Mains voltage too low.
Mains in standard English is the same as "line" in US English.
More info below:
So, Mains Frequency = Line Frequency.
Zanussi, AEG, Tricity and Electrolux fault codes, how to find them and how to find out what they are telling you
www.ukwhitegoods.co.uk