I have a Siemens SR65T080GB/21 dishwasher which keeps stopping and showing "E: 19" on the screen. Sometimes it errors almost as soon as it is turned on, other times it gets part way through the cycle before stopping, occasionally it manages to complete the cycle.
Googling tells me that this error means the heat exchanger valve has failed, but I've replaced that and it hasn't helped. Siemens' own website says it might be something to do with the detergent dispenser and that it is only fixable by an engineer - not much info on what the error actually means.
Has anyone got any ideas?
