Bosch dishwasher displaying a drainage error while a homeowner inspects standing water inside the dishwasher tub in a modern kitchen.

Bosch Dishwasher E24 Error: 7 Proven Fixes to Restore Proper Drainage

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Last updated: June 11, 2026

By Home Repair Genie

The Bosch Dishwasher E24 Error typically indicates a draining problem. In most cases, the error appears because the filter is clogged, the drain hose is blocked or kinked, the drain pump is obstructed, or the garbage disposal connection is restricted. Fortunately, many E24 errors can be resolved without replacing parts.

Quick Answer

If your Bosch dishwasher displays the E24 error code, start by cleaning the filter, checking for drain hose blockages, and inspecting the drain pump for debris. The E24 error almost always points to a drainage issue that prevents water from leaving the dishwasher properly.

What Does the Bosch Dishwasher E24 Error Mean?

The Bosch dishwasher E24 error code indicates that the appliance cannot drain water effectively during the drain cycle.

Common causes include:

  • Clogged dishwasher filter
  • Blocked drain hose
  • Kinked drain hose
  • Obstructed drain pump
  • Garbage disposal blockage
  • Air gap restriction
  • Drain pump failure

When drainage is restricted, the dishwasher’s control board detects the issue and displays the E24 code.

Fix 1: Reset the Dishwasher

Homeowner unplugging a Bosch dishwasher from a wall outlet to perform a reset procedure in a modern kitchen.

Sometimes a temporary electronic glitch can trigger the E24 error.

Steps

  1. Turn off the dishwasher.
  2. Disconnect power at the outlet or circuit breaker.
  3. Wait 5 minutes.
  4. Restore power.
  5. Run a short rinse cycle.

If the error returns, continue with the next troubleshooting steps.

Fix 2: Clean the Dishwasher Filter

Homeowner removing and rinsing a Bosch dishwasher filter under running water in a kitchen sink to clear food debris and improve drainage for a Bosch Dishwasher E24 Error.

A clogged filter is one of the most common causes of the Bosch dishwasher E24 error.

Steps

  1. Open the dishwasher door.
  2. Remove the lower dish rack.
  3. Twist and remove the filter assembly.
  4. Rinse the filter under warm running water.
  5. Use a soft brush to remove grease and debris.
  6. Reinstall the filter securely.

For additional cleaning tips, see our guide on How to Clean a Dishwasher: 7 Easy Steps for Sparkling Results (DIY Guide).

Fix 3: Inspect the Drain Hose for Blockages

inspect-bosch-dishwasher-drain-hose

Food particles and grease can accumulate inside the drain hose over time.

Steps

  1. Turn off power to the dishwasher.
  2. Pull the dishwasher forward if necessary.
  3. Locate the drain hose behind the unit.
  4. Check for kinks or sharp bends.
  5. Disconnect the hose.
  6. Flush it with water to remove debris.
  7. Reinstall the hose securely.

A restricted hose can significantly reduce drainage performance.

Fix 4: Check the Garbage Disposal Connection

Homeowner inspecting the dishwasher drain hose connection at a kitchen garbage disposal to check for clogs and drainage restrictions.

If the dishwasher drains through a garbage disposal, a blockage at the disposal can trigger the E24 code.

Steps

  1. Run the garbage disposal thoroughly.
  2. Disconnect power before inspecting connections.
  3. Verify that food waste is not obstructing the dishwasher drain inlet.
  4. If the disposal was recently installed, confirm that the knockout plug was removed.
  5. Reconnect everything securely.

Failure to remove the knockout plug is a surprisingly common installation mistake.

Fix 5: Clean the Air Gap (If Equipped)

Homeowner removing and cleaning a dishwasher air gap cap beside a kitchen faucet to clear debris and improve dishwasher drainage.

Some homes have an air gap mounted near the kitchen faucet.

Steps

  1. Remove the air gap cover.
  2. Lift off the plastic cap.
  3. Inspect for food debris.
  4. Clean the chamber thoroughly.
  5. Reassemble the air gap.
  6. Run a test cycle.

A blocked air gap can prevent proper dishwasher drainage.

Fix 6: Inspect the Drain Pump

Homeowner inspecting the drain pump area inside a Bosch dishwasher after removing the filter to check for food debris, glass fragments, and drainage obstructions.

Small objects can become lodged in the drain pump and prevent it from operating correctly.

Steps

  1. Disconnect power to the dishwasher.
  2. Remove standing water using a cup or towel.
  3. Remove the filter assembly.
  4. Access the drain pump cover.
  5. Check for glass shards, food particles, or debris.
  6. Carefully remove any obstructions.
  7. Reinstall the cover and filter.

If the pump impeller cannot rotate freely, drainage may be severely restricted.

If you find your Bosch dishwasher leaking, check out this helpful guide: Bosch E15 Error: 7 Powerful Fixes to Stop the Leak and Restore Your Dishwasher.

Fix 7: Test the Drain Pump

Technician using a digital multimeter to test the electrical connections on a Bosch dishwasher drain pump during a diagnostic repair in a modern kitchen.

If all drainage pathways are clear, the drain pump itself may have failed.

Steps

  1. Disconnect electrical power.
  2. Access the drain pump underneath the dishwasher.
  3. Inspect wiring connections.
  4. Check for signs of overheating or damage.
  5. Use a multimeter to test the pump if you’re comfortable performing electrical diagnostics.
  6. Replace the pump if testing confirms failure.

For official Bosch maintenance recommendations, visit the Bosch support website.

How to Prevent Bosch Dishwasher E24 Errors

Preventive maintenance can help reduce future drainage problems.

Best Practices

  • Clean the filter monthly.
  • Scrape large food particles from dishes.
  • Run the garbage disposal before starting the dishwasher.
  • Inspect the drain hose annually.
  • Periodically clean the air gap.
  • Run a dishwasher cleaning cycle regularly.

Routine maintenance helps keep water flowing properly and reduces the likelihood of drainage-related error codes.

When to Call a Professional

Consider professional service if:

  • The drain pump has failed.
  • Wiring damage is present.
  • The control board is malfunctioning.
  • The dishwasher continues displaying E24 after all drainage components have been inspected and cleaned.

A qualified technician can perform advanced electrical and mechanical diagnostics.

Frequently Asked Questions

Can I still use my dishwasher with the E24 error?

No. The dishwasher may not drain properly, which can leave standing water inside the tub and potentially cause additional issues.

Is the Bosch E24 error always a drain problem?

Yes. The E24 error is specifically related to drainage restrictions or drain pump operation problems.

Will resetting the dishwasher fix the E24 error?

A reset may clear a temporary software glitch, but it will not solve a physical blockage or failed component.

How often should I clean the dishwasher filter?

Most homeowners should clean the filter at least once per month. Households that run frequent dishwasher cycles may benefit from more frequent cleaning.

Can a clogged garbage disposal cause the E24 error?

Yes. A blocked disposal connection can prevent water from draining properly and trigger the E24 error code.

Conclusion

The Bosch Dishwasher E24 Error is usually caused by a drainage restriction rather than a major component failure. Start by cleaning the filter, inspecting the drain hose, checking the garbage disposal connection, and examining the drain pump for obstructions. In many cases, these simple repairs restore normal operation and eliminate the error code without requiring professional service.