I had problems with my 1.5 year old Siemens Dishwasher Model number SN26M890GB/07
The cycle would not finish and the water would not drain off. The impeller from the drain pump span OK so I took the bottom kick panel off (tricky) and the sides and got the drain pump and sump sensor out. An E25 error.
The drain pump only had a little bit of hair and plastic around the spindle. Nothing that would have really stopped it. I cleaned this out and put it all back. Got an E15 error which I think means the machine had a bit of a leak while I was fixing stuff and water was in the bottom of the tray.
It is working now but I noticed with the matrix that there is a channel that looks pretty brown and gunked up. When the waste pump is pumping the water away over the little sump the channel which appears brown seems to be taking excess pressure or something like that. Does anyone here know what that is an why it is discoloured and whether it might block and cause me problems in the future?
, on Flickr