Troubleshooting Bosch Dishwasher E22 Error Code: A Step-by-Step Repair Guide

Dishwashers have become an indispensable part of our daily lives, simplifying the tedious task of washing dishes.

However, like all appliances, they are not immune to occasional hiccups and errors. One such common issue faced by Bosch dishwasher users is the E22 error code.

This error code is a signal from your dishwasher that something is amiss, and immediate attention is required to ensure the appliance continues to function efficiently.

The E22 error code specifically indicates a filtration issue, often resulting from a clogged or improperly seated filter.

Addressing this error is crucial not only for the optimal performance of your dishwasher but also for extending its lifespan.

In this guide, we will walk you through a step-by-step process to effectively fix the E22 error code, allowing you to get back to enjoying the convenience of your Bosch dishwasher with minimal downtime.

Whether you are a seasoned DIY enthusiast or a beginner, this guide is designed to provide clear and concise instructions to help you navigate through the repair process with ease and confidence.

So, let’s dive in and explore how to resolve the E22 error code and ensure a smoothly running dishwasher!

Bosch Dishwasher E22 Error Code

I. Understanding the E22 Error Code

Before diving into the repair process, it’s essential to understand what the E22 error code signifies and why it occurs. This foundational knowledge will not only facilitate a smoother repair process but also help in preventing future occurrences of this error.

What Does E22 Mean?

The E22 error code on a Bosch dishwasher is indicative of a filtration issue. Specifically, this code is displayed when the appliance detects a problem with the filtration system, which is crucial for maintaining the cleanliness of the water during wash cycles.

Common Causes of E22 Error Code

  • Clogged Filter: The most prevalent cause of the E22 error is a clogged or dirty filter. Over time, food particles, grease, and other debris accumulate on the filter, obstructing the water flow and impairing the dishwasher’s efficiency.
  • Misaligned Filter: Sometimes, the filter might not be seated properly after cleaning or maintenance, leading to the E22 error. An improperly positioned filter can hinder the filtration process, causing the dishwasher to trigger the error code.
  • Damaged Filter: Wear and tear or accidental damage to the filter can also result in the E22 error. A compromised filter cannot perform its function effectively, necessitating its repair or replacement.
  • Sensor Malfunction: Although rare, the dishwasher’s sensor that detects filtration issues might malfunction, displaying the E22 error code erroneously. In such cases, the sensor itself might need examination and possible replacement.

Importance of Addressing E22

Ignoring the E22 error code can lead to several problems, including:

  • Inefficient Cleaning: With a compromised filtration system, the dishwasher cannot clean dishes effectively, leaving them with residues and spots.
  • Increased Energy and Water Consumption: A dishwasher struggling with filtration will likely use more water and energy to complete its cycles, leading to higher utility bills.
  • Shortened Appliance Lifespan: Continuous operation with a faulty filtration system can strain the dishwasher’s other components, potentially shortening its overall lifespan.

Understanding the E22 error code is the first step towards resolving it. With this knowledge in hand, you are better equipped to approach the repair process methodically and efficiently, ensuring that your Bosch dishwasher returns to its optimal functioning state in no time.

II. Tools and Materials Needed

Before you begin the process of fixing the E22 error code on your Bosch dishwasher, it’s imperative to gather all necessary tools and materials.

Having everything at hand will make the process smoother and prevent unnecessary interruptions.


  • Screwdriver: A Philips or flat-head screwdriver may be needed to remove any screws securing the filter or other components in place.
  • Soft-Bristled Brush: This tool is helpful for gently scrubbing and cleaning the filter without causing damage.
  • Vacuum Cleaner (with a hose attachment): A vacuum can help remove any loose debris or particles from the filter and surrounding areas.
  • Flashlight: Good lighting is essential, especially if the dishwasher is located in a dimly lit area. A flashlight will help you see clearly while working on the appliance.


  • Warm Water: Warm water is effective for loosening and removing stuck-on debris from the filter.
  • Mild Dish Soap: A gentle detergent will aid in the cleaning process without harming the dishwasher’s components.
  • Soft Cloth or Sponge: Use a soft cloth or sponge for cleaning purposes, ensuring you won’t scratch or damage the filter or other parts.
  • Towels: Have some towels ready to wipe down wet components and clean up any spilled water.

Safety Equipment

  • Rubber Gloves: Protect your hands from grime and possible sharp edges within the dishwasher with a pair of durable rubber gloves.
  • Safety Goggles: Although not mandatory, safety goggles provide an extra layer of protection, especially if you’re dealing with accumulated debris and dust.


Before you start, ensure the dishwasher is empty, with no dishes or utensils inside. Turn off and unplug the appliance from the electrical outlet to prevent any risk of electric shock.

If you cannot unplug the dishwasher, turn off the circuit breaker that powers the device.

With the right tools, materials, and safety equipment at your disposal, you’re now ready to tackle the E22 error code head-on.

Each of these items plays a crucial role in facilitating a safe and effective repair process, ensuring your Bosch dishwasher is back up and running efficiently in no time.

III. Step-by-Step Guide to Fixing E22 Error Code

Fixing the E22 error code involves a series of steps aimed at addressing the filtration issues in your Bosch dishwasher. Follow this systematic approach to ensure a successful repair:

1. Turn Off and Unplug the Dishwasher

  • Ensure the dishwasher is turned off and unplugged from the power source to prevent any electrical accidents.
  • If you can’t unplug it, turn off the circuit breaker supplying power to the dishwasher.

2. Remove the Dishwasher’s Filter

  • Open the dishwasher door and locate the filter at the bottom.
  • The filter is usually a cylindrical component that can be twisted and lifted out.
  • Refer to the user manual if you have difficulty finding or removing the filter.

3. Clean the Filter

  • Rinse the filter under warm running water to remove loose debris.
  • For stuck-on particles, use a soft-bristled brush and mild dish soap to gently scrub the filter.
  • Be thorough but gentle to avoid damaging the filter.
  • Rinse the filter again to remove any soap residue.

4. Check and Clean the Impeller

  • With the filter removed, you’ll have access to the impeller (the small fan-like component).
  • Check the impeller for any obstructions or debris and clean it if necessary.
  • Ensure the impeller can move freely, as blockages can impair its function.

5. Reassemble the Dishwasher

  • Once the filter and impeller are clean and intact, place the filter back into its original position.
  • Ensure the filter is seated properly and securely to prevent future errors.
  • Close the dishwasher door and reconnect the power source.

6. Run a Test Cycle

  • With everything reassembled, run a short wash cycle to test the dishwasher’s performance.
  • Observe whether the E22 error code reappears.
  • If the error persists, you may need to repeat the cleaning process or consult with a professional technician for further assistance.


  • Always refer to the user manual for model-specific instructions, as designs may vary slightly between different Bosch dishwasher models.
  • If the filter is damaged or excessively worn, consider replacing it with a new one to ensure optimal filtration.
  • Regular maintenance and cleaning of the filter and impeller can prevent the recurrence of the E22 error code and extend the lifespan of your dishwasher.

By following these steps meticulously, you should be able to resolve the E22 error code and restore your Bosch dishwasher to its peak operating condition. For persistent or recurrent issues, don’t hesitate to seek professional help to avoid causing further damage to the appliance.

IV. Prevention Tips

Preventing the E22 error code from reappearing in the future is crucial for maintaining the efficiency and longevity of your Bosch dishwasher. Here are some proactive measures you can take:

Regular Cleaning

  • Filter Maintenance: Regularly clean the dishwasher filter to prevent accumulation of debris and food particles. A clean filter ensures efficient water flow and optimal cleaning performance.
  • Impeller Check: Periodically inspect the impeller for obstructions or damage. A functional impeller is vital for the dishwasher’s water circulation.

Proper Loading

  • Avoid Overloading: Overloading the dishwasher can lead to poor water circulation and increase the likelihood of food particles clogging the filter.
  • Scrape Off Food Residues: Before placing dishes in the dishwasher, scrape off large food particles to reduce the load on the filter.

Use Quality Detergents

  • Choose Detergents Wisely: Using quality dishwasher detergents can result in cleaner dishes and less residue, reducing the strain on the filtration system.

Regular Inspections

  • Routine Checks: Conduct regular inspections of the dishwasher’s interior, including the filter, impeller, and spray arms, to identify and address potential issues early.

Schedule Professional Maintenance

  • Annual Service: Consider scheduling professional maintenance annually or as recommended by Bosch. Trained technicians can spot and fix problems that might not be immediately obvious to homeowners.

Refer to the Manual

  • Follow Manufacturer Guidelines: Always adhere to the guidelines and recommendations provided in the Bosch dishwasher manual for care and maintenance.

V. When to Seek Professional Help

While the E22 error code often signals issues that can be resolved with DIY methods, there are situations where professional assistance is necessary.

Recognizing when to call in the experts is crucial to prevent further damage to your Bosch dishwasher.

Persistent E22 Error Code

  • If the E22 error code continues to appear after you’ve cleaned or replaced the filter and checked the impeller, it might indicate a more serious underlying issue that requires expert attention.

Damaged or Faulty Components

  • In cases where the filter, impeller, or any other internal component is damaged or malfunctioning, and you’re unsure about replacing it yourself, it’s advisable to consult a professional technician.

Lack of Experience or Confidence

  • If you’re not comfortable or experienced in handling appliance repairs, attempting to fix the error yourself might lead to more harm than good. In such cases, seeking professional help is the safest option.

Electrical Issues

  • Should you suspect the E22 error is related to electrical problems or the dishwasher’s control panel, do not attempt to resolve this on your own due to the risk of electric shock. Professionals are equipped to handle such issues safely.

Recurrent Errors

  • If your dishwasher frequently displays the E22 or other error codes, this could be a sign of a systemic issue. Regular errors warrant a professional assessment to diagnose and address the root cause.

Finding Reliable Help

  • Certified Technicians: Always opt for technicians who are certified and experienced with Bosch appliances.
  • Warranty Considerations: If your dishwasher is still under warranty, consult the warranty terms and conditions. Unauthorized DIY repairs might void the warranty.
  • Customer Reviews: Look for service providers with positive customer reviews and recommendations.
  • Official Bosch Support: Consider reaching out to Bosch’s official customer service or authorized service centers for reliable and warranted repairs.

VI. Conclusion

Navigating through the intricacies of appliance repair can be daunting, but with the right guidance, resolving issues like the E22 error code on your Bosch dishwasher can be a straightforward and rewarding process.

This comprehensive guide has walked you through understanding the error, gathering necessary tools, executing the repair steps meticulously, and implementing preventive measures to avoid future recurrence of the error.

Remember, while DIY repairs can be cost-effective and immediate, they are not always the best solution for every problem.

In cases where the error persists or if you are uncertain about any step in the repair process, do not hesitate to seek professional assistance.

Certified technicians have the expertise and experience to handle complex issues efficiently, ensuring the longevity and optimal performance of your appliance.

Investing time in understanding and maintaining your dishwasher not only ensures a hassle-free operation but also contributes to the appliance’s lifespan, providing you with many years of clean and sparkling dishes.

So, the next time your Bosch dishwasher displays the E22 error code, approach the situation with confidence and knowledge, armed with this handy guide to help you every step of the way.

Frequently Asked Questions (FAQs)

How often should I clean the dishwasher filter?

It’s recommended to clean the dishwasher filter at least once a month or more frequently if you notice a decline in the appliance’s cleaning performance or if the E22 error code appears.

Can I use any replacement filter for my Bosch dishwasher?

Always use replacement parts, including filters, that are designed and approved for use with Bosch dishwashers. Using non-compatible components can lead to performance issues and might void the appliance’s warranty.

Is it safe to run the dishwasher with the E22 error showing?

While the dishwasher might still operate with the E22 error, its cleaning efficiency will likely be compromised due to filtration issues. It’s advisable to address the error promptly to avoid potential damage to the appliance.

Can I prevent the E22 error with regular maintenance?

Regular maintenance, including cleaning the filter and checking the impeller, can significantly reduce the likelihood of the E22 error occurring. Following the prevention tips outlined in this guide will help maintain the dishwasher’s optimal performance.

What should I do if the E22 error persists after cleaning the filter?

If the error continues after you’ve cleaned the filter, consider checking and cleaning the impeller. Should the error still persist, it might be wise to seek professional assistance as there could be other underlying issues.

Will DIY repairs void my Bosch dishwasher’s warranty?

Before attempting any DIY repairs, review the terms and conditions of your appliance’s warranty. Unauthorized repairs might void the warranty, so if your dishwasher is still under warranty, consider contacting Bosch or an authorized service provider for assistance.

How do I know if the filter is damaged and needs replacement?

Signs of a damaged filter include visible cracks, holes, or severe deformation. If the filter is damaged, it won’t effectively trap debris, leading to poor cleaning performance and potential E22 errors.

Can the E22 error be caused by using the wrong detergent?

While the wrong detergent might not directly cause the E22 error, using inappropriate or low-quality detergent can lead to excessive foam or residue, which might contribute to filter clogging and subsequent errors.


  • Bosch Home Appliances Official Website:
  • Bosch Dishwasher User Manuals:
  • Bosch Support and Customer Service:
  • Bosch Support
  • For troubleshooting, repair services, and customer inquiries.
  • Appliance Repair Forums:
  • Appliance Repair Forum
  • Engage with a community of users and technicians for additional tips and troubleshooting advice.
  • DIY Appliance Repair Guides:
  • Bosch Dishwasher Error Code Explanation:
  • Error Codes & Faults
  • A guide explaining various error codes, including E22, and potential solutions.

I am Kevin Technician and this website is created with the purpose to help common people to find proper information about Dishwasher. Feel free to comment or email your queries.