Many thanks CK. Im probably bein a complete numpty here but ive pulled the dishwasher out and cant see where or how to take the top off to get to the plastic part you are telling me about. I have done another wash since i posted this and it went full cycle without displaying the .30 code, i know it wont last for long though. Doesnt seem to be any excess water in the base as yet but im sure if i leave it much longer i will have issues like you said. Further advice is much appreciated.....
Crumpy
March 2010