Bosch e24 error

Every appliance has its quirks. For Bosch dishwasher users, encountering the Bosch E24 error can be frustrating. However, understanding this error and knowing how to tackle it can make your dishwasher’s issues less daunting. This guide delves deep into the common reasons for the Bosch E24 error and provides step-by-step solutions.

Table of contents

Reasons Behind the Bosch E24 Error

The Bosch E24 error commonly indicates a drainage problem in your dishwasher. Here are the primary reasons:

  1. Blocked Filters: Over time and with regular use, the filters in the dishwasher can collect debris and food particles. When these filters get clogged, the water drainage is hindered, leading to the E24 error.
  2. Kinked Drain Hose: The hose that removes water from the machine can sometimes get bent or kinked. This obstruction can impede the smooth flow of water, causing drainage issues.
  3. Clogged Drain Pump: Occasionally, larger debris bypasses the filters and accumulates in the drain pump. When the pump becomes clogged, it can’t effectively pump out the water.
  4. Faulty Drain Pump: Dishwasher components, including the drain pump, can wear out or malfunction. A faulty pump won’t drain water as it should, resulting in the E24 error.
  5. Software Glitch: Sometimes, the error isn’t caused by a physical problem but rather a software issue. A temporary glitch in the system can trigger the error, even if the drainage system is functioning well.
Bosch e24 error

Understanding these reasons can be the first step in troubleshooting and resolving the Bosch E24 error in your dishwasher.

How to fix bosch e24 error?

Fix 1: Detailed Steps to Address the Bosch E24 Error

The Bosch E24 error primarily points to drainage complications. Resolving these issues often requires a systematic approach. Here’s a comprehensive breakdown:

1. Tackling Blocked Filters

  • Turn off the dishwasher and unplug it to ensure safety.
  • Open the bottom of the machine to access the filter section. This is usually found beneath the lower rack.
  • Locate the filters. In most Bosch models, you’ll find a cylindrical mesh filter accompanied by a flat, fine-pored filter underneath.
  • Remove these filters carefully. Turn the cylindrical filter counter-clockwise (usually about a quarter turn) until it releases. Lift it out along with the flat filter beneath.
  • Examine both filters for debris, food particles, and any visible blockages. These are often the primary culprits behind drainage issues.
  • Clean the filters using warm water. If needed, use a soft brush to scrub off stubborn debris gently.
  • Once cleaned, reinstall the filters. Place the flat filter first, ensuring it sits flat against the dishwasher floor. Then, slot the cylindrical filter on top and turn it clockwise until it’s securely in place.
  • Plug in the dishwasher and run a test cycle to check for improved drainage.

2. Resolving Kinked Drain Hose issues

  • Unplug the dishwasher to ensure you’re working safely.
  • Move the dishwasher slightly out (if built-in) to access the back and locate the drain hose.
  • Inspect the entire length of the hose for any visible kinks, bends, or obstructions.
  • Straighten out any kinks gently with your hands. Ensure the hose maintains a U-shape at some point (often called a “high loop”) to prevent backflow of water.
  • After ensuring the hose is kink-free, push the dishwasher back into position if you moved it out.
  • Reconnect the power and run a short cycle to verify the fix.

3. Clearing the Clogged Drain Pump

  • Start by unplugging the dishwasher to ensure no electricity flows.
  • Open the dishwasher and remove the bottom rack for better access.
  • Locate the drain pump cover at the base of the dishwasher. This is typically a plastic cover held in place by one or two screws.
  • Remove the screws (if present) and lift off the cover to expose the drain pump.
  • Check for and remove any obstructions or debris in the pump area. Items like broken glass, seeds, or even small utensils can sometimes get lodged in this section.
  • Once cleared, replace the drain pump cover and secure it with the screws.
  • Plug in the dishwasher and test the fix with a short cycle.

Tackling these areas methodically can significantly enhance your dishwasher’s drainage performance, effectively addressing the Bosch E24 error.

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Fix 2: Further Steps to Resolve the Bosch E24 Error

Diving deeper into the resolution of the Bosch E24 error, some other potential issues and fixes can be considered. Here’s another set of comprehensive steps to troubleshoot this error:

1. Inspecting the Impeller in the Pump

  • Safety first: Always start by unplugging the dishwasher.
  • Remove the lower rack to gain better access to the dishwasher’s base.
  • Locate the drain pump cover, which you previously accessed in the initial fixes.
  • With the cover removed, look for the impeller – a wheel-like component that should freely rotate. This is crucial for effective drainage.
  • Gently attempt to spin the impeller using a finger. It should move without any restrictions.
  • If it feels stuck, inspect for debris or any foreign objects causing the jam. Remove any such obstructions carefully.
  • After ensuring the impeller rotates freely, re-secure the drain pump cover.
  • Plug in the dishwasher and run a test cycle to confirm the fix.
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2. Checking for External Drainage issues

  • Often, the problem may lie outside the dishwasher, particularly in the sink drain where the dishwasher hose connects.
  • Ensure the sink is not clogged. If your sink drainage is slow, this can impact the dishwasher’s ability to drain effectively.
  • Check the end of the dishwasher drain hose where it connects to the sink or garbage disposal. Ensure there’s no blockage at this junction.
  • Clean any build-up or obstructions you find in the sink drain or at the connection point.

3. Resetting the Dishwasher

  • Sometimes, a simple reset can clear minor software glitches causing the E24 error.
  • Turn off the dishwasher and unplug it.
  • Wait for about 10-15 minutes. This allows any residual power in the system to dissipate.
  • Reconnect the power and turn on the dishwasher.
  • Select a short cycle and see if the error has been resolved.

By addressing these additional areas, you further enhance the chances of fully resolving the Bosch E24 error in your dishwasher. If the problem persists, it might be wise to seek professional assistance to ensure all aspects of the issue are comprehensively addressed.

Fix 3: Advanced Solutions for the Bosch E24 Error

If the Bosch E24 error persists even after trying the previously mentioned methods, you might need to investigate deeper issues. Here are some advanced troubleshooting techniques to consider:

1. Examining the Air Gap

  • The air gap, often found beside the faucet on the kitchen sink, prevents sink water from entering the dishwasher.
  • Lift off the metal or plastic cap of the air gap.
  • Check for any debris or obstructions inside the air gap. Often, food particles or gunk can accumulate here, leading to drainage problems.
  • Clean out any obstructions and replace the air gap cap.

2. Investigating the Water Valve

  • A faulty or clogged water valve can lead to inadequate drainage.
  • Turn off the dishwasher and unplug it. Additionally, turn off the water supply to the dishwasher.
  • Locate the water valve, generally found where the hose meets the dishwasher.
  • Inspect the valve. Look for any signs of damage, clogging, or wear.
  • If damaged, consider replacing the valve. If merely clogged, clean out any obstructions.

3. Checking for Hose Blockages

  • Even if there are no visible kinks, the drain hose could still have internal blockages.
  • Disconnect the hose from both the dishwasher and the sink or garbage disposal.
  • Use a straightened coat hanger or a long brush to gently probe inside the hose. This can help dislodge any internal debris or build-ups.
  • Additionally, holding one end up, you can pour water from the top to ensure it flows smoothly out the other end.

4. Software or Control Panel issues

  • Occasionally, the Bosch E24 error might arise due to a software glitch or a malfunctioning control panel.
  • After unplugging the dishwasher, access the rear and locate the control panel’s connections.
  • Ensure all connections are secure. If you notice any loose wires or corroded connections, they may need attention.
  • Reconnecting any loose components and cleaning off any corrosion can sometimes restore normal function.

5. Seek Professional Help

  • If all these advanced solutions still don’t address the problem, it might be time to call in a professional. They’ll have the tools and expertise to diagnose and rectify even elusive issues causing the Bosch E24 error.

Taking a methodical approach and exploring these advanced solutions can further increase the likelihood of resolving the persistent error. Always remember that safety comes first; if at any point you’re uncertain, seeking professional guidance is the best course of action.

Fix 4: Delving Deeper to Resolve the Bosch E24 Error

When the Bosch E24 error remains stubborn despite various troubleshooting steps, a deeper dive into less common problems might be the solution. Here are some additional, more nuanced methods to consider:

1. Evaluating the Sump

  • The sump is the lowest part of the dishwasher where water collects before being pumped out.
  • After unplugging the dishwasher and ensuring safety, access the sump area.
  • Check for small items like seeds, glass shards, or any foreign objects that might be preventing water from being drained effectively.
  • Clean out any debris you find and ensure the sump area is clear of any obstructions.

2. Testing the Drain Pump Electrically

  • A malfunctioning drain pump might still physically look fine. To ascertain its health, you may need to test it electrically.
  • With the dishwasher unplugged, locate the drain pump and disconnect it from the dishwasher.
  • Using a multimeter, check the resistance of the pump. Typically, a healthy pump should read between 100 to 350 ohms. If it reads outside this range, it might be faulty and need replacing.

3. Evaluating the Pressure Switch

  • The pressure switch or float switch can sometimes malfunction, leading to drainage issues.
  • Locate the pressure switch, typically found at the bottom of the dishwasher.
  • Ensure the switch moves freely. If it’s jammed or doesn’t move smoothly, it might be signaling the machine that it’s still full of water, even when it isn’t.
  • Clean around the switch, ensuring no debris is causing obstructions.

4. Inspecting Internal Hoses and Connectors

  • Beyond the main drain hose, the dishwasher has various internal hoses and connectors that can get clogged.
  • After ensuring safety precautions, inspect these internal components for any signs of blockages or disconnections.
  • Clear any obstructions and securely reconnect any loose components.

5. Update the Dishwasher’s Software

  • While rare, sometimes software glitches can cause or contribute to the E24 error.
  • Refer to the Bosch user manual or the brand’s official website to check for any software updates for your dishwasher model. If available, updating the software might help resolve the issue.

If you’ve exhausted all these fixes and the Bosch E24 error persists, it may indeed be time to consult a Bosch technician or a professional appliance repair service. They can provide a thorough assessment and ensure that every facet of the issue has been addressed.

Fix 5: Comprehensive Measures to Counteract the Bosch E24 Error

Confronted with the persistent Bosch E24 error? Delving into deeper layers of your dishwasher might yield the elusive solution. These next-level fixes consider various facets that might be affecting your machine:

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1. Confirming the Anti-Flood Protection

  • Some Bosch dishwashers come equipped with anti-flood protection, which can trigger drainage issues if activated.
  • To check, tilt your dishwasher slightly to the side. If water pours out from the base, the anti-flood mechanism might be the culprit.
  • Dry the dishwasher’s base thoroughly using towels and reset the appliance.

2. Cleaning the Turbidity Sensor

  • The turbidity sensor measures the cleanliness of the water. If it’s dirty or malfunctioning, it might wrongly signal the dishwasher to drain prematurely.
  • After ensuring safety, locate the turbidity sensor—typically found at the bottom of the machine.
  • Clean the sensor gently with a soft brush or cloth, removing any build-ups.

3. Checking the Wiring Harness

  • Intermittent electrical issues can arise due to a compromised wiring harness.
  • With the dishwasher unplugged, inspect the wiring harness for any signs of damage, fraying, or disconnections.
  • Ensure all connections are tight and that there are no corroded or burnt connectors.

4. Examining the Control Module

  • A faulty control module can misread or send incorrect signals, leading to the E24 error.
  • Access the control module, usually located behind the control panel or at the base of the unit.
  • Inspect for any visible signs of damage or burn marks. If the control module appears compromised, consider replacing it.

5. Confirming Proper Installation

  • An incorrect installation angle can cause drainage problems.
  • Ensure that your dishwasher is installed at the recommended angle. If it’s leaning too far forward, water might be draining prematurely, causing the error.

6. Air Vent Cleaning

  • Some models come with an air vent at the top of the dishwasher door to prevent steam damage to countertops. If clogged, this vent can cause drainage errors.
  • Locate the air vent (if your model has one) and ensure it’s free from obstructions.

In the face of persistent issues, these comprehensive measures might just offer the solution you need. However, if the Bosch E24 error remains unfazed, seeking professional intervention might be the most effective and hassle-free approach.

Fix 6: Advanced Diagnostics for the Bosch E24 Error

When common fixes don’t seem to make the cut, diving even deeper into advanced diagnostics can sometimes hold the key. For the persistent Bosch E24 error, here’s another layer of potential solutions:

1. Inspect the Drainage Pathway:

  • Every element of the drainage pathway, from the sump to the hose, plays a role.
  • With the dishwasher unplugged, methodically check the entire pathway to ensure no small obstructions or gunk build-up is causing the issue.

2. Evaluating the Heating Element:

  • The heating element aids in evaporating excess moisture. If it’s not working correctly, it could indirectly cause drainage problems.
  • Locate the heating element at the dishwasher’s base.
  • Test it with a multimeter for continuity. Lack of continuity indicates a need for replacement.

3. Temperature Sensor Check:

  • If the temperature sensor malfunctions, the dishwasher might not operate correctly, leading to drainage problems.
  • Find the temperature sensor (often near the heating element).
  • Like the heating element, use a multimeter to check for any irregularities. Replace if necessary.

4. Assessing the Detergent Dispenser:

  • Sometimes, excessive foam can cause drainage issues. If the detergent dispenser is releasing too much detergent, it could be the hidden cause.
  • Check the detergent dispenser for any signs of malfunctioning.
  • Clean it thoroughly and ensure it dispenses the right amount during a cycle.

5. Calibrating the Dishwasher:

  • Occasionally, the dishwasher may need recalibration to function properly.
  • Refer to your Bosch dishwasher’s user manual for calibration instructions. This often involves pressing a series of buttons in a specific sequence.

6. Opting for Diagnostic Mode:

  • Bosch dishwashers come with a diagnostic mode, which can help pinpoint the exact issue causing the error.
  • Using the user manual, activate the diagnostic mode. This mode will cycle through each function of the dishwasher. Pay attention to any section where the cycle stalls, as it can hint at the underlying problem.

By deep-diving into these advanced diagnostic solutions, you bolster your chances of resolving the elusive Bosch E24 error. If the problem still eludes resolution, it’s a clear sign to get a professional technician involved. They can offer specialized solutions tailored to your machine’s unique needs.

Fix 7: Uncharted Territory – Navigating the Bosch E24 Error

When you’ve seemingly tried everything, and the Bosch E24 error refuses to retreat, it’s time to explore even more nuanced possibilities. Here’s a fresh list of advanced strategies:

1. Review the Inlet Valve:

  • While the focus is often on drainage, the water inlet can indirectly affect the drainage process.
  • After ensuring the dishwasher is unplugged, locate the inlet valve.
  • Inspect it for any blockages, leaks, or malfunctions. Cleaning or replacing a faulty valve can sometimes address drainage issues.

2. Investigate the Flow Meter:

  • The flow meter regulates and checks the amount of water entering the machine.
  • Find and inspect the flow meter for any signs of damage or wear.
  • A malfunctioning flow meter can send incorrect signals, confusing the dishwasher’s drainage system.

3. Clean the Fine Filter:

  • Beyond the obvious drain filters, Bosch dishwashers also have a fine filter that might collect tiny debris over time.
  • Remove and thoroughly clean this filter, ensuring that there are no obstructions.

4. Examine the Non-Return Valve:

  • The non-return valve stops dirty water from re-entering the dishwasher. A malfunctioning valve could disrupt the drainage process.
  • Locate the non-return valve, typically situated near the sump.
  • Ensure it moves freely and isn’t blocked by debris.

5. Addressing Potential Overflows:

  • Overflows, though rare, can mess with the standard drainage operations.
  • Inspect the dishwasher’s base for signs of water collection. If you find any, clean and dry the area.
  • Check if the overflow float switch is functional. Replace if it shows signs of malfunction.

6. Double-Check the Door Latch:

  • It might sound unrelated, but a misaligned or faulty door latch can sometimes halt operations, leading to drainage errors.
  • Ensure that the door latches properly. If there’s any issue with the latch mechanism, address it, as it can impact the entire cycle.

7. Quality of Detergent:

  • Poor-quality or expired detergents can produce excess foam, which can be mistaken as a drainage issue.
  • Ensure you’re using a high-quality dishwasher detergent and that it’s within its usability period.

Venturing into these lesser-known territories can sometimes be the secret to resolving the stubborn Bosch E24 error. When all else fails, enlisting the expertise of a certified technician provides both peace of mind and a potential long-term solution.

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Fix 8: Probing Deeper into the Bosch E24 Error Mystery

For those undeterred by the persistent Bosch E24 error, sometimes, the answer lies in the most unexpected corners. Here are yet another set of strategies for this seemingly elusive error:

  • 1. Examine the Salt Container Cap:
    • Bosch dishwashers have a salt container to soften hard water.
    • Make sure the salt container cap is screwed on tightly. If it’s loose, it can allow water to seep out and disrupt the draining process.
  • 2. Reboot the Control Board:
    • Like computers, sometimes dishwashers need a good old-fashioned reset.
    • Turn off the dishwasher at the mains, wait for 10-15 minutes, then power it back on. This can reboot the control board and clear minor glitches causing the E24 error.
  • 3. Assess the Rinse Aid Dispenser:
    • The rinse aid helps in the drying process but, if malfunctioning, can interfere with the wash cycle.
    • Check the rinse aid dispenser. Ensure it’s not overfilling or dispensing excessively.
  • 4. Unclog the Spray Arms:
    • Spray arms with blocked holes can cause uneven water distribution, affecting the entire washing and draining cycle.
    • Remove the spray arms and clean out any blockages from their holes using a toothpick or small brush.
  • 5. Check the Drive Motor:
    • A faulty drive motor might not provide the necessary force to push water out effectively.
    • Listen for any unusual sounds during a cycle. If it sounds different or strained, the drive motor might be the culprit.
  • 6. Inspect the Water Level Sensor:
    • This sensor ensures that the dishwasher doesn’t overfill. A malfunction can cause incomplete or premature drainage.
    • Locate the water level sensor and ensure it’s clean and functioning. Replace it if it shows signs of wear or malfunction.
  • 7. Validate the Installation Height:
    • Bosch dishwashers have a recommended installation height for the drain hose.
    • Confirm that the drain hose height adheres to the manufacturer’s recommendations. An incorrect height can influence drainage efficiency.

With these strategies in your troubleshooting arsenal, the chances of resolving the Bosch E24 error increase manifold. However, if the problem remains adamant, don’t hesitate to consult a professional. Sometimes, a technician’s trained eye can spot what might elude even the most diligent homeowners.

Preventing the Bosch E24 Error

Avoiding the Bosch E24 error altogether is far more convenient than tackling it repeatedly. Here are some proactive measures to ensure the smooth functioning of your dishwasher:

  • 1. Regular Maintenance Checks: Don’t wait for an error to prompt you. Periodically inspect the drainage system, filters, and spray arms, ensuring they’re clear of debris and functioning optimally.
  • 2. Use High-Quality Detergent: Invest in a premium dishwasher detergent. Not only does it clean better, but it also prevents excessive foaming which can interfere with the drainage.
  • 3. Avoid Overloading: A cramped dishwasher can obstruct water flow and drainage. Load your dishwasher judiciously, ensuring there’s space for water to circulate freely.
  • 4. Rinse Before Loading: While Bosch dishwashers are powerful, giving dishes a quick rinse can prevent larger food particles from clogging the system.
  • 5. Adhere to Installation Guidelines: Ensure that the dishwasher is installed according to Bosch’s recommended guidelines. Proper positioning, especially of the drainage hose, plays a critical role in efficient drainage.
  • 6. Opt for Regular Professional Checks: Consider getting a professional technician to inspect your dishwasher once a year. Their expertise can preempt potential issues, saving you from future headaches.
  • 7. Keep the Seals Clean: The door seal can accumulate grime over time. A clean seal ensures the door closes properly, preventing any water leakage and subsequent drainage issues.
  • 8. Update Software: Some modern Bosch dishwashers come equipped with software. Ensure you’re up-to-date with the latest software version. Periodic updates can resolve known glitches and improve performance.
  • 9. Use Rinse Aid Judiciously: While rinse aid is beneficial, excessive amounts can mess with the wash cycle. Use the recommended amount and ensure the dispenser isn’t leaking.

By adhering to these preventive measures, you not only safeguard against the Bosch E24 error but also ensure the longevity and optimal performance of your appliance. After all, prevention is always better than cure.


The Bosch E24 error doesn’t spell the end for your dishwasher. With the right approach, you can diagnose and fix the issue, restoring your appliance’s functionality. Remember to consult your manual and when in doubt, always reach out to professionals. Your dishes will be sparkling clean in no time!


What exactly is the Bosch E24 error?

It signals a drainage problem in your Bosch dishwasher.

My dishwasher just flashed E24! What should I do first?

Don’t panic! First, check for obvious blockages in the drain or filter.

Can I fix the E24 error by myself?

Absolutely! Many fixes are DIY-friendly. However, some require professional attention.

How often should I clean the filters?

For optimal performance, aim to clean them once every month.

Does detergent quality really matter?

Yes! High-quality detergents reduce foam and improve drainage.

The error persists after cleaning the filter. What next?

Consider checking the drainage hose, pump, and other components.