my indesit we16 evolution 1600?

Mine did the same thing, H2o means just that, it's overfilling with water. Unplug electric and remove top cover from machine. On right hand side looking from front is a round thing called a fill limit switch, look underneath this and there is a 8mm rubber pipe runs down to base of drum, check this pipe for having rubbed thru (ours had), if it's OK then you need to test fill switch by blowing into it while checking changeover with test meter or remove it (note what wire goes where) and take to spares shop, where they would probably test it for you.

Ian
November 2006