Leaking Siemans Dishwasher

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16 Feb 2026
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United Kingdom
I have a Siemens dishwasher which I believe is similar to a lot of other brand (Bosch etc)

It is currently leaking from underneath and quite rapidly. It runs a cycle for up to 5 minutes before it cuts out with the e15 error as the float switch has triggered.

I have taken it apart as much as I can and have seen the dripping coming from the very back of underneath the dishwasher. I have tried re sealing the sump and checked other connections for leaks but doesn’t seem to be that.

I believe it is leaking from between the back panel and the main housing as it seems to only leak when the water level on the inside of the dishwasher is above this join. It is really hard to see in my photo, but I have attached a picture of it.

If anyone has any ideas on what it might be and if it’s the panel whether it’s possible to seal that would be great. Also if anyone can point me to a teardown guide as I can’t understand how I’d even get that far into the machine to repair anything

Both images are taken from the front bottom access panel
IMG_0709.jpeg
IMG_0705.jpeg
 

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