Bosch Dishwasher E15 Error Code
If your Bosch dishwasher is displaying error code E15, the control detected water in the base pan area and activated the unit's built-in leak-protection system as a safety measure. E15 commonly indicates that the float switch or aqua-stop sensor sensed standing water where it shouldn't be, which can come from an actual leak or, less often, from a sensor reading it as one.
Because E15 is a safety-related code rather than a specific-part code, it can appear for more than one underlying reason, so it doesn't always mean the same component has failed. Display format may vary by model — some Bosch dishwashers show "E15" directly on the display, while others show a flashing light pattern that corresponds to the same code in the owner's manual.
What Might Be Going On
Possible causes include the items below — a proper diagnosis confirms which one applies to your unit.
- A supply line, drain hose, or internal fitting leaking into the base pan
- A float switch stuck or not resetting after previous moisture
- Condensation pooling in the base from a door seal or gasket issue
- A previous small leak that has since dried but tripped the float sensor
Safe Checks You Can Try
A few visual checks and manufacturer-supported steps — nothing that requires opening up the appliance.
- Check the floor and cabinet around the dishwasher for visible signs of water
- Confirm the dishwasher is sitting level and hasn't shifted, which can affect the float switch
- Try a basic power reset per Bosch's instructions in your owner's manual, if supported
- Avoid running additional cycles until the leak source is identified
If these checks don't resolve the issue, professional diagnosis is the next step — our technicians confirm the exact cause on-site before recommending a repair.
Related Pages
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