how can i fix my washer dryer, Zanussi,WJS 1265W?

My Zanussi WJS 1265W shows E10 error. This error occurs when i want to program dry cycle (washing cycle is fine). According to the instructions E10 could represent one of the following:
The water tap is closed;
The filter in the inlet hose is blocked;
The inlet hose maybe squashed or kinked;
Water top is not turned on.
I have checked and cleaned inlet & outlet pipes and the water supply is fine but i am still presented with error E10.
I have also carried out wash maintenance cycle with the use of loose powder Calgon and Ariel. Same error.
Any ideas?