March 2020 – Siemens SN26T290EU/02 Dishwasher

My Dishwasher had strange issues for quite a while: Whenever I used the “VarioSpeed” function (to reduce the cleaning time from usually 2h20 to 1h30) while it cleaned very nicely, it was afterwards “blocked” with an error message E15 (which means “The dishwasher signals that water is in the floor tub.”) . After some googling, I found the recommendation to just tilt the whole machine by about 30deg to the side so as to empty the leaked water bassin in its bottom to the floor (and then to mop all that water up….) – or to wait for one or two days for it to dry. And indeed that worked.

So, this happened several times in the last 6 months. Then recently, things got worse, the differential fuse of the whole apartment triggered and left me in the black. This happened when the dishwasher started the cleaning phase after the initial (cold water) rinsing. And again … this happened after having used VarioSpeed.

So I first suspected that this might be some element of the electrical installation of the machine that got wet, maybe by water that leaked over the bassin?

Then yesterday it happened again, and when I then restarted the machine with a “reset” and launched a full program (after having tilted it and emptied the leaking water bassin) it did run the whole program – but this time the machine ended with “E:04” on the screen. And the dishes where all wet – and cold.

So now a new suspicion for the root cause emerged: The heating of the dishwasher must be involved.

Luckily, Bosch Siemens Hausgeräte (BSH) has an excellent website for spare parts. So using that website (after entering the model identifier) I found the explosive diagram of the machine and quickly was able to find the part number of the pump that heats the machine, the “Heizpumpe” (00654575). However, 134Eur for a pump? Come on guys. So…. typed the part number into amazon.de and found the same for 90 Eur. and with Amazon prime shipment two days later the part is delivered. Search for a Youtube video on how to replace it – https://www.youtube.com/watch?v=OekeUFFcIHg – and voila! Two days later, the piece is in the mailbox.

However, our friends at BSH have modified the pump design and in particular the connectors. Luckily the vendor on Amazon provides already a set of new adapter cables together with the pump. So, after certainly more than half an hour of cutting and recabling, I finally managed the put the new pump into the machine. And heurka, it’s cleaning and heating again. But…. it shows again Error 15 !

Stay tuned for the next episode 🙂

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