Reviewed by Jordan Avery · Last reviewed July 27, 2026
Written by
Jordan Avery Appliance Repair Content SpecialistPublished July 27, 2026Technically reviewed July 27, 2026
Error codeE15
ApplianceDishwasher
Quick answer
E15 indicates the anti-flood system has detected water in the base of the dishwasher.
Model compatibility: Bosch reuses codes across series and model years, so E15 may mean something different on another appliance or generation. Confirm this against your model’s documentation and record your full model number before acting.
Plain language
What this code means
The E15 code means the dishwasher’s anti-flood float has triggered because water collected in the base tray. It is a protective response that stops the cycle to prevent a leak from spreading.
Signs
Symptoms you may notice
Cycle stops and E15 appears
Base tray float has activated
Dishwasher will not resume normally
Why it happens
Possible causes
A minor leak collecting in the base tray
A blocked or restricted drain path
Residual water from a previous fault
Before you call
Safe checks you can make
These are simple, non-hazardous checks only. If anything is unclear, stop and contact a technician.
Check for visible water pooling under the unit
Confirm the dishwasher is level and the door closes fully
Look for obvious kinks in an accessible drain hose
Important safety warning. E15 is a water-safety response. Because it involves water near electrical components, avoid internal disassembly and have a technician locate the source of the water.
Please avoid
What not to attempt
Do not tip or disassemble the dishwasher to drain it
Do not remove internal electrical components
Do not bypass the anti-flood safety device
Get help
When to call a technician
If E15 returns after basic checks, or if you see any water under the unit, book a diagnosis so the leak source can be found and corrected safely.
Seeing this code on your Bosch appliance?
Book a specialist visit for a clear estimate and approval before any repair. Independent service — not an official Bosch service center.
You can safely check for pooling water and that the unit is level, but a recurring E15 needs a technician to find the leak source.
It is a protective response, but water near electrical parts should be handled carefully — avoid internal disassembly.
References
Sources & references
Appliance user manual — error indicators section
Independent service disclosure:
Repair Factory is an independent appliance repair service. We are not affiliated with, authorized by, or endorsed by BSH Home Appliances or the Bosch brand. All manufacturer names, logos and model numbers are used for identification and compatibility reference only.
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