Bosch Dishwasher Error Code E24: Not Draining (Filter or Drain Blocked)

Start here - most E24 errors are fixed in this section.

1. Clean the filter first. Remove the bottom rack, unscrew and remove the cylindrical filter, lift out the mesh screen beneath, rinse both under warm water, scrub gently with a soft brush, and reinstall them securely.
2. Check for visible debris in the filter area and remove any food particles or buildup you can safely reach.
3. Run a short test cycle. If the dishwasher drains normally, the issue is likely resolved.
4. If it is still not draining, check the drain hose under the sink and make sure it is not kinked or obviously blocked.
5. If applicable, confirm the garbage disposal knockout plug was removed during installation and clear any visible blockage in the air gap.

Error code E24 on your Bosch dishwasher indicates: The dishwasher is not draining properly due to the drain filter being blocked. The appliance detects this condition through its built-in sensors and halts the current cycle to prevent further damage. Depending on the model, the code may flash on the display panel, appear on a digital readout, or cause the status lights to blink in a specific sequence. The dishwasher will not resume normal operation until the underlying fault is resolved.

The most frequent cause of error E24 is clogged drain filter. When this happens, the dishwasher's control board detects the abnormal sensor reading or motor response and triggers the fault code as a protective measure. Other contributing factors are listed in the causes section below — working through them in order is the fastest path to a fix.

Error E24 is one of the most DIY-friendly Bosch dishwasher fault codes. Most homeowners can clear it in under 15 minutes without tools or replacement parts. Follow the step-by-step guide below exactly — skipping steps is the most common reason the error comes back.

The most visible symptom of E24 is standing water at the bottom of the tub at the end of a cycle — the dishwasher failed to pump it out. The water may appear cloudy from food particles or detergent residue. Do not run another cycle until the fault is cleared, as this could allow water to overflow onto the floor.

• Clogged drain filter (most common).
• Blocked or kinked drain hose.
• Debris in the pump area.
• Garbage disposal knockout plug not removed on a newer installation.
• Blocked air gap, if one is installed.

• Do not run repeated cycles with standing water.
• Do not force the drain cycle multiple times.
• Do not open or dismantle internal components.
• Do not ignore the issue, as it can lead to overflow.
• Some Bosch models allow access to the pump area beneath the filter.
• Only inspect this area if it is easily accessible and described in your manual.
• Do not force or dismantle internal components.
• If you are unsure, stop here and contact a technician.

The dishwasher still does not drain after the checks above.

• You hear unusual grinding or loud noises.
• The error returns repeatedly after cleaning.
• You are not comfortable inspecting internal areas.

• Clean the filter every 3-4 weeks.
• Rinse heavy food residue before loading.
• Run hot cycles regularly.
• Run the garbage disposal before starting, if the dishwasher is connected to one.