E15
What code E15 means on a Bosch dishwashers, what causes it, and which part to check first.
● SEVERITY: HIGH
Bosch E15 means: Water in the base trough. The documented cause is: Indicates that the safety switch has detected water in the base of the dishwasher. Your leakage protection system has activated. Need to check why water is leaking into the base.
What E15 means
Water in the base trough
The display shows E15 and the machine stops until the fault is cleared.
What the technical documentation says
Causes documented in the technical source published by applianceaid.com
| DOCUMENTED CAUSE OR CHECK |
|---|
| Indicates that the safety switch has detected water in the base of the dishwasher |
| Your leakage protection system has activated |
| Need to check why water is leaking into the base |
Replacement parts
Tools you'll need
Before you open anything
Unplug the machine and close the water tap before removing any panel. The heating element and the wash water can stay hot long after the cycle ends.
What to check, in order
From the quickest check to the one that needs a technician.

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Frequently asked questions
What does E15 mean on a Bosch?
Water in the base trough The documented cause is: Indicates that the safety switch has detected water in the base of the dishwasher. Your leakage protection system has activated. Need to check why water is leaking into the base.
Can I fix E15 myself?
It depends on the part involved: Indicates that the safety switch has detected water in the base of the dishwasher. Your leakage protection system has activated. Need to check why water is leaking into the base. Clearing a filter or straightening a hose is within reach of anyone; anything behind a panel means mains electricity and water together — that is a job for a technician.
Does Bosch use other codes on this appliance?
Yes: we document 14 other codes for Bosch on this dishwashers. They are listed at the bottom of this page, each with its own meaning.
Does the same code mean the same thing on other brands?
Often not. The same two characters can point to completely different faults depending on the manufacturer — always check the page for your own brand.

