Bosch e22 error: Dishwasher filter is blocked

Every homeowner understands the importance of having a smoothly functioning dishwasher. Yet, every machine faces its share of challenges. One such problem many users face is the Bosch E22 error. If you’ve encountered this alert, it points towards a blocked dishwasher filter. Let’s understand the causes and delve deep into the steps to fix this pesky issue.

Why Bosch E22 Error Occurs: The Root Causes

It’s natural to wonder, why is my dishwasher displaying the E22 error? While the primary cause is a blocked filter, several factors lead to this blockade.

  1. Accumulated Food Particles: Over time, tiny food bits left on dishes accumulate, blocking the filter.
  2. Broken Glass or Ceramic: Accidental breakages can lead to tiny fragments lodging in the filter.
  3. Hard Water Deposits: In areas with hard water, calcium and lime can build up, obstructing filter pores.

Knowing the cause is essential as it helps in rectifying the problem more efficiently.

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How to fix the Bosch E22 Error?

Repairing the blocked filter issue doesn’t always necessitate an expert. Here’s a handy guide to help you out:

Fix 1: Detailed Cleaning of the Dishwasher Filter

Addressing the Bosch E22 error necessitates understanding the heart of the problem: the filter. Here’s a comprehensive guide to effectively clean the dishwasher filter and restore optimal performance.

  1. Disconnect the Power: Before any maintenance, safety should be your priority. Disconnect the dishwasher from the electrical outlet to prevent any unforeseen accidents.
  2. Open the Dishwasher Door: Lay it flat to get a comprehensive view of the dishwasher’s insides. This will give you easier access to the bottom components.
  3. Remove the Bottom Dish Rack: Slide out the rack completely and place it aside. This ensures a clear path to the filter.
  4. Locate the Filter Assembly: Found at the dishwasher’s base, the filter typically appears as a cylindrical component with a meshed or perforated design.
  5. Release and Remove the Filter: Turn the filter counterclockwise (most Bosch models). Once it’s loose, lift it straight up. It’s imperative to handle it with care to prevent any damage.
  6. Inspect the Filter: Before cleaning, it’s crucial to check for any visible damages. If you notice tears or holes, it may be time to replace the filter.
  7. Submerge and Clean: Fill a basin with warm soapy water. Place the filter in, allowing it to soak for a few minutes. Using a soft-bristle brush, gently scrub away any debris or blockage. Pay extra attention to the spaces between the mesh or perforations.
  8. Rinse and Dry: After cleaning, thoroughly rinse the filter under running water. Ensure all soap residues are washed away. Use a soft cloth to pat it dry or let it air dry for a bit.
  9. Reinstall the Filter: Once cleaned and dried, return the filter to its original position. Turn it clockwise to secure it, ensuring it’s firmly in place.
  10. Reconnect the Power: Plug the dishwasher back into the electrical outlet.
  11. Run a Test Cycle: To ensure that the error has been resolved, run a short rinse cycle. If the water drains efficiently and no error pops up, you’ve successfully tackled the Bosch E22 error.

In maintaining your dishwasher, remember that regular cleaning of the filter plays a pivotal role. It not only ensures seamless operation but also extends the lifespan of your machine.

Fix 2: Checking and Cleaning the Drain Hose

The drain hose is another critical component when it comes to proper drainage in dishwashers. A blocked or kinked hose can also lead to the Bosch E22 error. Below is a detailed guide on how to inspect and clean it.

  1. Ensure Safety First: As always, disconnect the dishwasher from the power source to ensure you’re working safely.
  2. Pull Out the Dishwasher: Depending on its installation, you might need to slightly pull out your dishwasher. This ensures you have access to the back where the drain hose is located. Be gentle to avoid damaging any connections.
  3. Locate the Drain Hose: On most Bosch models, it’s a flexible tube running from the back of the dishwasher to the drain or garbage disposal unit.
  4. Inspect the Hose: First, check if the hose is kinked or pinched, which can obstruct water flow. If you find any such areas, straighten them out.
  5. Disconnect the Hose: Before you do this, place a pan or towel beneath the connection points to catch any residual water. Using pliers, loosen the hose clamp at the dishwasher end and gently remove the hose.
  6. Check for Blockages: Hold the hose up to a light source. If light doesn’t pass through, there might be a clog.
  7. Flush the Hose: To remove the blockage, you can use a straightened coat hanger, taking care not to puncture the hose. Once done, flush the hose with water to ensure it’s clear.
  8. Reconnect the Hose: Once satisfied, reconnect the drain hose to the dishwasher. Ensure the hose clamp is tight, preventing any leaks.
  9. Push Back the Dishwasher: If you had to pull it out, gently slide the dishwasher back into its original position.
  10. Reconnect to Power and Test: Plug the dishwasher back in and run a short cycle. A successful drainage without any errors will confirm that the drain hose was the culprit behind the Bosch E22 error.
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Regularly checking and cleaning the drain hose, just like the filter, can prevent potential blockages. It ensures that your dishwasher runs smoothly, giving you spotless dishes every time.

Fix 3: Inspecting and Cleaning the Impeller Pump

The impeller pump plays a crucial role in draining water out of your dishwasher. A malfunctioning or blocked impeller can result in the Bosch E22 error. Let’s dive into the steps to inspect and clean this essential component.

  1. Safety Precautions: Start by unplugging the dishwasher to eliminate any electrical risks. Safety should always be your top priority.
  2. Access the Bottom Panel: Open the dishwasher door and remove the bottom dish rack for clear access. You’ll often find the impeller pump located at the base of the dishwasher.
  3. Remove the Protective Cover: There should be a cover or shield protecting the impeller. Carefully unclip or unscrew this, depending on your specific Bosch model.
  4. Inspect the Impeller: The impeller should spin freely. Check for any obvious signs of blockages like large food particles, glass shards, or any foreign objects.
  5. Clean the Impeller: Gently clean around the impeller using a soft cloth or brush. If there are stubborn blockages, consider using a mixture of warm water and mild detergent to loosen debris.
  6. Check for Wear and Tear: Over time, the impeller can wear out. If it appears damaged or overly worn, it might need replacement. Consider consulting your Bosch manual or seeking professional advice.
  7. Reattach the Protective Cover: Once cleaned and inspected, place the cover back onto the impeller. Ensure it’s securely fastened to prevent any rattling during operation.
  8. Reposition the Bottom Dish Rack: Slide the rack back into its designated position.
  9. Power On and Test: Reconnect the dishwasher to the power source. Running a short rinse cycle can help determine if the Bosch E22 error has been resolved. If the water drains smoothly and the error doesn’t reappear, you’ve pinpointed the issue.

Regular maintenance of the impeller pump is advisable. Keeping this component in top shape ensures that your dishwasher drains water efficiently, maximizing its performance and longevity.

Fix 4: Clearing the Drainage Pathway

A clear path is crucial for water to efficiently exit your dishwasher. Sometimes, the issue isn’t just the filter, hose, or impeller. It could be a simple blockage along the drainage pathway. Addressing this can often resolve the Bosch E22 error.

  1. Prioritize Safety: Before you dive into the fix, unplug the dishwasher. This ensures a risk-free working environment.
  2. Open the Dishwasher: For a clear view and access, open the dishwasher door and remove the bottom dish rack.
  3. Inspect the Drainage Path: At the base of the dishwasher, you’ll notice a pathway where water flows towards the drain. Check this path for any obvious blockages like larger food particles or foreign objects.
  4. Use a Soft Cloth or Sponge: Gently clean the drainage path. If there’s accumulated gunk or smaller particles causing the blockage, a cloth or sponge can effectively clear it.
  5. Pour a Baking Soda Mixture: Mix a cup of baking soda with two cups of white vinegar. Pour this down the drainage path. This acts as a natural cleaner, breaking down any unseen obstructions and deodorizing the dishwasher. Let it sit for 20 minutes.
  6. Boil Water: After the mixture has sat, boil about two liters of water. Pour this down the drainage path. The hot water helps to flush out any remaining debris and the baking soda-vinegar mix.
  7. Reassemble: Once the pathway is clean and clear, place the bottom dish rack back inside the dishwasher.
  8. Power and Test: Reconnect the dishwasher to its power source. Initiate a short cycle to test its performance. If the drainage is smooth and the Bosch E22 error doesn’t pop up, your effort has paid off!
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Remember, a clear drainage pathway is essential for the efficient functioning of your dishwasher. Incorporating this check into your regular maintenance routine can keep your dishwasher in peak condition, ensuring sparkling dishes every time.

Fix 5: Resetting the Dishwasher’s System

Sometimes, electronic appliances need a simple reset to function correctly. This can also be the case with your Bosch dishwasher. The Bosch E22 error might occasionally be a system glitch rather than a physical blockage. Here’s how you can reset the dishwasher to potentially clear the error.

  1. Start with Safety: Before making any adjustments, disconnect the dishwasher from its power source. This ensures you’re working in a safe environment.
  2. Wait a Few Minutes: With the dishwasher unplugged, wait for about 10 minutes. This allows the internal electronics to reset completely.
  3. Check the Door: Ensure that the dishwasher door is firmly closed. A not properly sealed door can sometimes cause errors.
  4. Reconnect to Power: After waiting, plug the dishwasher back into the outlet.
  5. Initiate a Drain Cycle: Most Bosch dishwashers have a dedicated drain cycle. Start this cycle to let the dishwasher attempt to drain any residual water.
  6. Monitor for Error: Once the cycle completes, observe if the Bosch E22 error reappears.
  7. Consult the User Manual: If the error persists, it’s good to refer to the user manual. Sometimes, specific Bosch models might have unique reset procedures.
  8. Consider a Full System Reset: If the quick reset doesn’t work, you might need to reset the dishwasher’s settings to factory default. Do note that this will erase any custom settings you might have set up.
  9. Seek Professional Help: If the error remains even after a system reset, there might be an underlying electronic issue. In such cases, consider reaching out to a Bosch technician or professional appliance repair service.

Electronic glitches can sometimes present as physical errors. Thus, a system reset can often be a straightforward solution to seemingly complex problems. Periodic resets can also help in maintaining the overall efficiency and longevity of your dishwasher.

Fix 6: Verifying the Drain Valve

The drain valve plays a pivotal role in regulating the flow of water out of your dishwasher. If it malfunctions or gets stuck, it can trigger the Bosch E22 error. Here’s how to inspect and rectify issues with the drain valve.

  1. Safety First: Ensure the dishwasher is unplugged from the power source to prevent any accidents.
  2. Access the Drain Valve: Typically, the drain valve is located at the base of the dishwasher. You might need to remove the toe-kick panel to access it.
  3. Check for Obstructions: Over time, small objects or debris can lodge within the valve, preventing it from opening or closing properly. Gently clear any visible obstructions.
  4. Test the Valve’s Solenoid: The solenoid controls the valve’s operation. Using a multimeter, check the solenoid for continuity. A lack of continuity indicates a defective solenoid that needs replacement.
  5. Reassemble and Test: Once you’ve checked and, if necessary, replaced the valve or its components, reassemble everything and power the dishwasher. Run a short cycle to verify the error has been resolved.

Fix 7: Evaluating the Water Pump Belt

On some older Bosch dishwasher models, a water pump belt helps in draining the water. If it’s broken or loose, it can lead to drainage issues.

  1. Ensure Safety: Start by unplugging the dishwasher.
  2. Locate the Water Pump Belt: You might need to turn the dishwasher over or access it from the back. The belt is typically situated at the bottom.
  3. Inspect the Belt: Check for signs of wear, slackness, or breakage. A sagging belt might not provide the necessary force to drain water efficiently.
  4. Replace if Necessary: If the belt shows signs of wear or breakage, replace it with a suitable replacement part, ensuring a snug fit.
  5. Test the Dishwasher: After replacing, reconnect the dishwasher to power and initiate a cycle to see if the error persists.
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Fix 8: Monitoring the Float Assembly

The float assembly in a dishwasher detects the water level. If it’s stuck or malfunctioning, it might wrongly signal the dishwasher, leading to drainage issues.

  1. Start with Safety: Always disconnect the dishwasher from the power source before working on it.
  2. Find the Float Assembly: This component is typically a small plastic dome or cylinder located at the dishwasher’s base.
  3. Check for Movement: The float should move freely up and down. If it’s stuck, gently try to lift it. Ensure there are no obstructions causing it to jam.
  4. Clean the Float Area: Over time, soap residue or debris can accumulate around the float. Clean this area thoroughly to ensure smooth movement.
  5. Inspect the Float Switch: Beneath the float is a switch that gets triggered as the float rises. If defective, this might not signal the dishwasher to drain. Use a multimeter to test the switch for continuity, replacing if faulty.
  6. Reconnect and Test: After ensuring the float assembly’s proper functioning, plug the dishwasher back in and run a cycle. If everything’s in order, the Bosch E22 error should no longer appear.

By methodically working through each potential cause, you can systematically eliminate the factors contributing to drainage issues in your dishwasher, ensuring its optimal performance.

Preventing the Bosch E22 Error: Tips to Keep Your Dishwasher Running Smoothly

To ensure your Bosch dishwasher remains free from the dreaded E22 error and runs efficiently, consider these proactive preventive measures:

  1. Rinse Before Loading: Before placing dishes in the dishwasher, give them a quick rinse. This reduces the amount of food debris that can potentially clog the filter or drainage system.
  2. Regular Maintenance: At least once a month, check and clean the filter, drainage pathway, and other critical components. Regular upkeep prevents the accumulation of debris.
  3. Use the Right Detergent: Ensure you’re using a high-quality dishwasher detergent suited for Bosch models. Some detergents can produce excessive suds, leading to drainage issues.
  4. Don’t Overload: Overloading the dishwasher can hinder water circulation and drainage. Load your dishes correctly, ensuring there’s space for water to flow freely.
  5. Check for Dishware Blockage: Ensure that smaller dishware items, like small bowls or cups, aren’t flipped upside down, collecting water and causing drainage impediments.
  6. Regularly Clean the Seal: The rubber seal around the dishwasher door can accumulate gunk over time. Wipe it down periodically to ensure a tight seal and efficient drainage.
  7. Avoid Hard Water: Hard water can cause mineral build-up in your dishwasher. Consider using a water softener or specialized detergents for hard water regions.
  8. Run a Cleaning Cycle: Every couple of months, run an empty dishwasher cycle with a dishwasher cleaner. This helps clear out any build-up and ensures efficient drainage.
  9. Check Hoses Regularly: Periodically inspect the drain hose for kinks, clogs, or damage. A clear and undamaged hose is crucial for effective drainage.
  10. Consult the Manual: Familiarize yourself with the Bosch user manual. It often contains model-specific tips and maintenance advice to keep your dishwasher in top shape.

By incorporating these preventive tips into your routine, you can extend the life of your dishwasher, reduce the chances of facing errors, and ensure a hassle-free dishwashing experience.

Conclusion

A blocked dishwasher filter might seem daunting initially. But with the right approach, the Bosch E22 error can be fixed in no time. By understanding the root causes, checking for immediate obstructions, and following a systematic cleaning process, you’ll restore your dishwasher’s efficiency. Additionally, implementing preventative measures ensures you spend less time troubleshooting and more time enjoying spotless dishes!

FAQs

What does the Bosch E22 error indicate?

It means your dishwasher’s filter might be blocked or there’s a drainage issue.

How often should I clean the filter?

Clean it at least once a month. Regular cleaning ensures smooth drainage.

Can overloading cause drainage problems?

Yes, overloading can hinder water circulation and proper drainage.

My dishwasher still shows E22 after cleaning. What now?

Check other components like the impeller pump, drainage pathway, or float assembly.

Does detergent type affect drainage?

Absolutely. Some detergents produce excessive suds, leading to drainage issues.

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