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Source-backed error-code guide

Reviewed

Bosch Dishwasher E24 / E-24 Error Code

Bosch says E24 can be caused by drain-pump cover issues, a blocked pump or hose, a kinked drain hose, an air-gap or drain-hose clog, or a disposer knockout plug that was not removed.

Applies to Bosch dishwasher

What the appliance detected

Detected condition

The dishwasher reports that it is not draining properly.

What may contribute

Possible causes

  • The drain pump cover may be loose.
  • The drain hose may be kinked or restricted.
  • The air gap, disposer connection, or drain hose may be clogged.

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

    • Check the visible drain hose for kinks or sharp bends.
    • If the dishwasher drains to a garbage disposer, confirm the disposer knockout plug was removed during installation.
    • Follow the model manual for any filter or pump-cover check and disconnect power before wet-area work.

  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

  • E24 remains after accessible drain-path checks.
  • Standing water, leaks, or sharp debris make checks unsafe.
  • Internal pump, wiring, or plumbing diagnosis would be 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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