had this code when attached to the hot tap
changed to cold tap and all is fine for me hope
that helped
brett
February 2012
I have the same problem, overfilling all the time. I have the manual and the is a help line number = 0845 600 4632.
I will phone Bush in the morning and see what thay say.
Flooded my kitchen three times now.
I will let you know how I get on.
Keith Artherton
August 2011
Hi
I was looking for a new door seal for mine when I came across your question. According to my instruction book, code E4 means abnormal water level. Possible problem too much inlet water.