got a problem with my dishwasher,its not draining,ive searched around and it looks (and sounds) like the pump may be jammed,the problem is though that i cant get access to it. I've got the sides and the lid off and cannot see how to get access,it looks like i need to take the base off,but its a moulded plastic one,which looks like everythin is attached to it,any help gratefully recieved.