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Source-backed error-code guide

Reviewed

Bosch Dishwasher E15 Error Code

Bosch says E15 means the safety switch detected water in the base and the leakage-protection system activated. Bosch instructs owners to turn off water inflow and contact Bosch support.

Applies to Bosch dishwasher

What the appliance detected

Detected condition

The dishwasher reports water in the base and activated leakage protection.

What may contribute

Possible causes

  • Water may be present in the dishwasher base.
  • Leakage protection may have activated.
  • A leak source may require service diagnosis.

Start conservatively

Safe preliminary checks

Work in order and stop whenever a step is not supported by the documentation for your model.

  1. Record the Bosch dishwasher display

    • Photograph or write down the exact code or flashing-light pattern before clearing it.
    • Confirm the full model number and owner manual because Bosch dishwasher codes vary by series and control platform.

  2. Use only documented homeowner checks

    • Turn off the water inflow if it is safely accessible.
    • Stop using the dishwasher while the leak-protection code is present.
    • Contact Bosch Customer Support or qualified service.

  3. Stop before internal dishwasher work

    • If the code remains or returns after documented checks, request Bosch support or qualified service.
    • Do not test live components, access control boards, bypass leak protection, or disassemble pumps or heaters beyond model-manual maintenance.

Actions not recommended

  • Do not reach into wet areas while the dishwasher has power.
  • Do not test live voltage or open internal electrical areas.
  • Do not treat an error code as proof that one specific internal component failed.

When to stop and request service

  • E15 appears or Active lights flash with leak-protection behavior.
  • Water is visible around or under the dishwasher.
  • Any internal leak, float, wiring, or base-pan diagnosis is needed.

Documented source

Official information reviewed

Our summary is based on manufacturer support material and stays within the limits of that material.

Source reviewed by Appliance Help HQ: August 18, 2026.

Appliance Help HQ is an independent informational site and is not affiliated with or endorsed by Bosch.

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