How to Rectify E22 Error in Bosch Dishwasher

By sarvottam

Published on:

A Bosch dishwasher is a valuable addition to any kitchen, making the daunting task of washing dishes a breeze. However, like any complex appliance, it may occasionally encounter errors that disrupt its smooth operation. One such error is the dreaded E22 error, which can leave you scratching your head in confusion. But fear not! In this article, we’ll dive into what the E22 error means, the possible reasons behind it, and, most importantly, how to rectify it yourself without the need for a costly service call.

Understanding the E22 Error

When your Bosch dishwasher displays the E22 error code, it typically indicates a drainage issue. In simple terms, the dishwasher is unable to drain water effectively from the tub, resulting in this error message. Proper drainage is crucial for the dishwasher to function optimally and avoid potential leaks and flooding. So, it’s essential to address the E22 error promptly to ensure your dishwasher’s longevity and efficient performance.

Possible Reasons for the E22 Error

  1. Clogged Drain Filter: A common cause of the E22 error is a clogged drain filter. Over time, food particles, debris, and other foreign objects can accumulate in the drain filter, obstructing the water flow and causing drainage problems.
  2. Blocked Drain Hose: The dishwasher’s drain hose might get blocked or kinked, impeding the water from exiting the tub during the drainage cycle. This blockage triggers the E22 error as the dishwasher recognizes the problem.
  3. Faulty Drain Pump: A malfunctioning drain pump can also lead to the E22 error. If the pump fails to expel water from the dishwasher effectively, the error code will appear, signaling that something is hindering proper drainage.
  4. Air Gap Issues: An air gap is a device installed near the sink that prevents dirty water from flowing back into the dishwasher. If the air gap is clogged or improperly installed, it can disrupt the drainage process, causing the E22 error.

How to Rectify the E22 Error

Now that we’ve identified the potential causes of the E22 error, let’s explore the steps to rectify it and get your Bosch dishwasher back to its full functionality:

  1. Check the Drain Filter: Start by inspecting the dishwasher’s drain filter. It is usually located at the bottom of the dishwasher. Turn off the dishwasher and carefully remove the filter. Rinse it under running water to remove any debris or particles that may be causing the blockage. Once clean, reinsert the filter and restart the dishwasher to see if the error persists.
  2. Inspect the Drain Hose: Next, examine the drain hose for any obstructions or kinks. To access the drain hose, you may need to pull the dishwasher out slightly. If you find any blockages, gently clear them and ensure the hose is free from any kinks. Once done, put the dishwasher back in its place and run a test cycle.
  3. Check the Drain Pump: If the error persists, the drain pump might be faulty and require attention. Before proceeding, ensure the dishwasher is disconnected from the power source. Locate the drain pump, usually found at the bottom of the dishwasher. Check for any debris or objects stuck inside the pump and remove them. If the pump seems damaged or inoperative, consider replacing it with a new one.
  4. Inspect the Air Gap: Lastly, if none of the above steps resolve the E22 error, it’s time to inspect the air gap. Remove the air gap cover and clean any debris that might be causing the obstruction. If you find any damaged components, replace them. Once everything is back in place, run a test cycle to check if the error is resolved.

By following these steps, you can rectify the E22 error in your Bosch dishwasher and enjoy its efficient performance once again. Regular maintenance, such as cleaning the filter and drain hose, can help prevent this error from occurring in the future.


The E22 error in your Bosch dishwasher can be a bit frustrating, but armed with the knowledge of its causes and how to rectify it, you can tackle it with confidence. Remember to check the drain filter, inspect the drain hose and pump, and examine the air gap for any blockages or damages. With a little troubleshooting and some elbow grease, you can get your dishwasher back on track and ensure smooth and trouble-free dishwashing for years to come.

FAQs – How to Rectify E22 Error in Bosch Dishwasher

  1. What should I do if the E22 error keeps reappearing after performing the steps mentioned above? If the E22 error persists even after cleaning the drain filter, drain hose, pump, and air gap, it’s possible that there might be a more significant underlying issue. In such cases, it’s best to seek assistance from a qualified Bosch dishwasher technician or the manufacturer’s customer support.
  2. Can I use a chemical drain cleaner to clear any blockages in the dishwasher’s drain system? It is not recommended to use chemical drain cleaners in your dishwasher. These harsh chemicals can damage the dishwasher’s components and may not be effective in removing the blockage. Stick to manual cleaning methods as mentioned in the article.
  3. How often should I clean the dishwasher’s drain filter to prevent the E22 error? Cleaning the drain filter every 2 to 3 months is generally sufficient to prevent clogging and maintain proper drainage in the dishwasher. However, if you notice any issues with water not draining correctly, consider checking the filter more frequently.
  4. Is it necessary to replace the drain pump if it appears to be working but the E22 error persists? If the drain pump seems to be functioning correctly but the E22 error persists, there may be an electrical or sensor-related problem. In such cases, it’s best to consult a professional technician to diagnose and fix the issue accurately.
  5. Can I run the dishwasher without the drain filter? No, it’s not advisable to run the dishwasher without the drain filter. The filter plays a crucial role in trapping food particles and debris, preventing them from clogging the drain pump and other components. Running the dishwasher without a filter can lead to more severe drainage issues.
  6. What should I do if water remains pooled at the bottom of the dishwasher even after fixing the E22 error? If water continues to accumulate in the dishwasher, check for other potential issues, such as a faulty float switch or a malfunctioning water inlet valve. These components can also affect proper drainage and may need attention.
  7. Can I reset the dishwasher to clear the E22 error code? While some dishwasher models may have a reset function, it’s essential to address the underlying issue causing the E22 error instead of merely resetting the appliance. Resetting without fixing the problem can lead to recurring errors and potential damage.
  8. Is it safe to disassemble the dishwasher myself to access the drain pump? Disassembling a dishwasher can be complex and potentially hazardous if not done correctly. If you’re not confident in your DIY skills or lack experience with dishwasher repair, it’s best to leave it to trained professionals to avoid any accidents and ensure proper repairs.

Leave a Comment