Bosch Dishwasher Troubleshooting E24 Error

Bosch Dishwasher Troubleshooting E24 Error

Are you struggling with the E24 error on your Bosch dishwasher? You’re not alone!

The E24 error on a Bosch dishwasher typically indicates a drainage problem. Often, it’s caused by a clogged filter, a blocked drain hose, or issues with the drain pump. A quick fix can be as simple as cleaning the filter or ensuring the hose isn’t kinked.

Ready for a deeper investigation into the Bosch dishwasher troubleshooting E24 error? Let’s get your dishwasher running smoothly again!

Bosch Dishwashers E24 Error Common Causes

Bosch Dishwashers E24 Error Common Causes

The E24 error code on a Bosch dishwasher is a signal indicating a specific issue with the appliance, primarily related to its drainage system. This error is displayed when the dishwasher encounters problems draining water properly.

There are various causes of the E24 error code in Bosch dishwashers, which indicates a drainage issue. Understanding these causes is crucial for effective troubleshooting. Here are the common causes, detailed:

Clogged Drainage Hose

The drainage hose is a crucial component that carries wastewater from the dishwasher to the drain. Over time, this hose can become clogged with food particles, grease, or other debris, leading to blockages that prevent water from draining properly. A clogged hose is one of the most common causes of the E24 error​​​​.

Blocked Filter

The dishwasher filter traps food particles and other debris to prevent them from re-entering the clean water cycle. However, if not cleaned regularly, this filter can become blocked, restricting water flow and leading to drainage issues. A dirty or clogged filter is another frequent cause of the E24 error, emphasizing the importance of regular maintenance​​​​.

Faulty Drain Pump

The drain pump is responsible for expelling water from the dishwasher. If this pump is faulty or damaged, it can fail to function correctly, resulting in the inability to drain water. This malfunction can trigger the E24 error. A faulty pump might need professional assessment or replacement​​​​.

Plumbing Issues

Sometimes, the issue may not be with the dishwasher itself but with the connected plumbing. This can include a clogged sink drain or issues with the garbage disposal unit. Improper installation or a failure to remove the knockout plug when connecting to a garbage disposal can also cause drainage problems, leading to the E24 error​​​​.

Air Gap Blockages

The air gap in plumbing prevents dirty water from flowing back into the dishwasher. If this air gap is blocked, it can disrupt the normal flow of water and result in drainage issues. Keeping the air gap clear is essential for smooth dishwasher operation​​​​.

Control Board Malfunctions

In some cases, the problem may stem from the dishwasher’s control board. A malfunction in this electronic component can lead to various errors, including the E24. This issue might require professional diagnosis and repair​​.

Bosch Dishwasher Troubleshooting E24: Step-by-Step Guide

Bosch Dishwasher Troubleshooting E24: Step-by-Step Guide

Applying this comprehensive and step-by-step guide will allow you to troubleshoot the E24 error that occurs in your Bosch dishwasher:

Inspect the Drainage Hose:

  • Locate the drainage hose at the back of the dishwasher.
  • Ensure that it’s not kinked, bent, or clogged.
  • If necessary, detach the hose and flush it out to remove any blockages​​​​.

Clean the Filter:

  • Remove the bottom dish rack to access the filter.
  • Twist and lift the filter out.
  • Rinse it thoroughly under running water to remove any debris.
  • Reinstall the filter, ensuring it is properly seated​​​​.

Check the Drain Pump:

  • Locate the drain pump (refer to your dishwasher’s manual for specific location).
  • Check for any blockages or debris in the pump.
  • Inspect the pump’s impeller to ensure it moves freely.
  • If the pump is faulty, it may need replacement​​​​.

Evaluate Plumbing Connections:

  • Check the sink drain and garbage disposal for any clogs.
  • Ensure that the dishwasher’s drain hose is properly connected and not obstructed.
  • If your dishwasher connects to a garbage disposal, make sure the knockout plug has been removed​​.

Examine the Air Gap (if applicable):

  • Locate the air gap, usually near the sink faucet.
  • Remove the cap and clean any debris that might be blocking it.
  • Ensure that the air gap is not obstructed for proper water flow​​​​.

Reset the Dishwasher:

  • After performing these checks, reset your dishwasher.
  • This can typically be done by pressing and holding the start button or following the reset procedure in your manual.

Run a Test Cycle:

  • Choose a short wash cycle and run the dishwasher to test if the E24 error has been resolved.
  • Monitor the dishwasher throughout the cycle to ensure it drains properly.

If, after following these steps, the E24 error persists, it may indicate a more complex issue, possibly with the control board or a component that requires professional assessment and repair​​. In such cases, contacting a certified appliance repair technician or Bosch customer service is advisable for further diagnosis and repair.

E24 Error Preventive Maintenance Tips and Routine

To effectively maintain your Bosch dishwasher and prevent issues like the E24 error, here’s a helpful preventive maintenance tips table:

Maintenance TaskFrequencyDescriptionImpact on Dishwasher Performance
Clean the FilterAfter every 3-5 cyclesRinse the filter under running water to remove food particles.Prevents blockages, improves drainage and cleaning efficiency.
Rinse Dishes Before LoadingBefore every loadRemove large food particles and grease.Reduces the risk of clogs and enhances cleaning effectiveness.
Inspect the Drain HoseEvery 6 monthsCheck for kinks, blockages, and proper alignment.Ensures efficient water flow and drainage.
Check and Clean the Spray ArmsEvery 6 monthsEnsure the spray holes are clear of debris.Maximizes water distribution for better cleaning.
Use the Correct DetergentEvery cycleUse a detergent suitable for Bosch dishwashers.Prevents excess suds and drainage issues.
Regularly Clean the InteriorMonthlyWipe down the interior with a damp cloth, including door seals.Maintains cleanliness and prevents odors.
Inspect and Clean the Air Gap (if applicable)Every 6 monthsEnsure it’s clear of debris.Prevents backflow and drainage problems.
Descale the DishwasherEvery 3-6 monthsUse a dishwasher-safe descaling agent.Removes limescale build-up, improving performance and longevity.


What does the E24 error code mean on my Bosch dishwasher?

The E24 error code typically indicates a drainage problem. It’s often caused by blockages in the drainage system, such as a clogged filter or drain hose, or issues with the drain pump​​​​.

How can I fix the E24 error myself?

Start by checking and cleaning the filter, inspecting the drain hose for kinks or blockages, and ensuring the drain pump is functioning properly. These are common areas where issues arise leading to the E24 error​​.

How often should I clean my dishwasher filter?

It’s recommend to clean the filter every 3-5 wash cycles to prevent food particles from clogging it, which can lead to drainage problems like the E24 error​​.

Could plumbing issues outside the dishwasher cause the E24 error?

Yes, plumbing issues like a clogged sink drain or problems with the garbage disposal can impact your dishwasher’s ability to drain and may trigger the E24 error​​.

Is it necessary to use a specific type of detergent in my Bosch dishwasher?

Using the correct type of detergent is important. High-efficiency detergents are recommend for Bosch dishwashers to prevent excessive suds, which can cause drainage issues​​.

Should I attempt to repair a faulty drain pump myself?

If the drain pump is faulty, it might require replacement. If you’re experienced with appliance repairs, you could attempt it, but otherwise, it’s advisable to seek professional help​​.

What preventive measures can I take to avoid the E24 error in the future?

Regular maintenance, such as cleaning the filter, ensuring the drain hose isn’t kinked, and using the right detergent, can help prevent the E24 error. Also, periodically check and clean the air gap, if applicable​​​​​​.

Final Verdict

The E24 error code on a Bosch dishwasher is a common issue that typically points to problems in the drainage system. The most effective approach to addressing this error includes a series of steps: inspecting and cleaning the filter, checking the drain hose for blockages or kinks, evaluating the drain pump for functionality, and examining any connected plumbing like sink drains or garbage disposals.

Regular maintenance, such as cleaning the filter and drain hose, can prevent many of these issues. If the error persists after following these troubleshooting steps, it may indicate a more complex issue that requires professional assessment, particularly if it involves the dishwasher’s control board or intricate mechanical components.

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Jane Francisco

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