The Bosch Dishwasher's Secret Cleanse: Unlocking The E22's Potential (2024)

The Bosch Dishwasher's Secret Cleanse: Unlocking The E22's Potential (1)

If your Bosch dishwasher is displaying an E22 error code, it means that there is still water in the dishwasher basin at the end of the cycle, indicating a drainage problem. This is usually caused by a clogged or blocked filter. To resolve the issue, you will need to remove and clean the dishwasher filter.

CharacteristicsValues
Error CodeE22
MeaningFilter is blocked or clogged
CauseFood from dishes, dirt, foreign objects, or calcium buildup
SolutionRemove and clean the filter, then run a quick cycle
Alternative SolutionsCheck the drain hose, drain pump, and non-return valve for blockages; perform a hard reset; contact Bosch customer support

What You'll Learn

  • How to reset a Bosch dishwasher?
  • How to clean the filter?
  • How to check for a blockage inside the dishwasher?
  • How to remove the hose and non-return valve?
  • How to access the circulation pump?

The Bosch Dishwasher's Secret Cleanse: Unlocking The E22's Potential (2)

How to reset a Bosch dishwasher

If your Bosch dishwasher is displaying an error code, such as E22, this means there is a problem that needs to be addressed. Error codes typically indicate issues ranging from electrical problems to clogged filters.

If you start a wash cycle and realise you chose the wrong settings or there is an electrical problem causing the dishwasher to malfunction, you may need to reset your machine.

  • Pop the door open. If your dishwasher is currently running a cycle, avoid opening it too much, so water doesn't spray out.
  • Press the start button for at least three seconds. On most models, the screen will flash "0:01" or the "Clean" indicator will flash, showing you are now in setup mode.
  • Close the door and let the water drain automatically. This may take a minute or so. If the machine was on its highest setting, it may take longer for all the water to drain.
  • Press the On/Off button to begin a new cycle. You should now be able to program your machine to run a new cycle.

If the buttons on your dishwasher are unresponsive, you can try a manual reset:

  • Unplug the dishwasher and wait 2-3 minutes before plugging it back in again. Make sure the cord is not wet and that there is no standing water behind the machine.
  • If the plug is difficult to reach or covered in water, locate your main electrical panel and flip the circuit breaker on and off to reset the power. Remember, this will turn off all lights and appliances on the same circuit as the dishwasher.

If you are still getting an error code after resetting, there could be an issue with your sensors, and you may need to contact Bosch for support or repairs.

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How to clean the filter

To clean the filter of a Bosch E22 dishwasher, you must first remove it. The filter unit can be removed by unscrewing the filter cylinder at the base of the dishwasher and lifting the unit out.

Before removing the filter, take out the bottom rack of the dishwasher and set it aside. The filter is located at the bottom of the dishwasher tub. Rotate the filter knob to the left and lift it up to remove.

Once the filter is removed, clean it under running water. You can use a small brush, such as an old toothbrush, to gently clean the inside of the filter and remove smaller pieces of debris. If the filter is heavily soiled, you can soak it in warm, soapy water before rinsing. Do not use anything abrasive as this can damage the filter.

After cleaning, dry the filter and reassemble the unit by pushing the bottom part back into place. Place the filter back into the dishwasher and turn it clockwise until the arrows on the filter and on the bottom of the dishwasher align.

It is recommended to clean your Bosch dishwasher filter every few months. However, if you use your dishwasher daily, you may need to clean the filter monthly.

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How to check for a blockage inside the dishwasher

To check for a blockage inside your Bosch dishwasher, you will need to remove the filter. This can usually be done by turning it counterclockwise and lifting it out of the dishwasher. If you are unsure how to do this, consult your owner's manual for instructions.

The filter is located at the bottom of the dishwasher tub, underneath the bottom rack. To access it, you will need to remove the bottom rack and the bottom spray arm. Once you have located the filter, turn the filter knob/cap counterclockwise to disengage it and pull it straight up to remove the filter assembly.

Inspect the filter assembly for any signs of damage. If there is any damage, you will need to replace the filter assembly. If there is no damage, you can proceed to clean the filter.

To clean the filter, first remove any large food particles or debris from the filter assembly and dispose of them. Then, twist the filter cap off to separate it from the filter screen for a more thorough cleaning. Rinse the cap and screen under warm running water, using a soft-bristled brush and dish detergent to gently scrub away any stubborn debris. Once clean, let the filter assembly dry completely before returning it to the dishwasher.

If your dishwasher is still displaying the E22 error code after cleaning the filter, the blockage may be in the drain hose or drain pump. To check for a blockage in the drain hose, you will need to disconnect the dishwasher from the power supply and remove the kick plate to access the hose. Use a pair of pliers to compress the clamp securing the hose to the dishwasher, and place a bucket or towel underneath to catch any water. Visually inspect the hose for obstructions and run high-pressure water through it to clear any blockages.

To check for a blockage in the drain pump, turn off the water supply and disconnect the dishwasher from the power outlet. Locate the drain pump, usually towards the front of the appliance, and disconnect the hoses from the pump. Check the inlet and outlet ports for any obstructions, and turn the impeller to ensure it is moving freely. Use a pair of needle-nose pliers to remove any hard-to-reach items.

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How to remove the hose and non-return valve

If you are experiencing drainage problems with your Bosch dishwasher, you may need to remove the hose and non-return valve to check for blockages or damage. Here is a step-by-step guide on how to do this:

Step 1: Unplug the Dishwasher

Before performing any repairs or maintenance on your dishwasher, it is important to ensure that it is disconnected from its power source. Unplug the dishwasher from the wall or, if necessary, turn off the circuit breaker.

Step 2: Access the Hose and Non-Return Valve

The next step is to locate and access the hose and non-return valve. Depending on your Bosch dishwasher model, this may involve removing the lower dish rack, spray arm, and filter basket. In some cases, you may also need to remove a side panel or the kick plate access panel to reach the internal drain hose.

Step 3: Remove the Hose and Non-Return Valve

Once you have located the hose and non-return valve, you will need to remove them for inspection and cleaning. Be prepared to catch any water that may come out using a bucket or cloth.

Step 4: Clear any Blockages

Inspect the hose and non-return valve for any dirt, debris, or food bits that may be causing a blockage. Use a flathead screwdriver or another appropriate tool to carefully dislodge or remove any blockages. Ensure that water can flow smoothly through the hose and valve once again.

Step 5: Reinstall the Hose and Non-Return Valve

After clearing any blockages, carefully reinstall the hose and non-return valve, ensuring that all connections are secure.

Step 6: Reassemble the Dishwasher

Finally, reassemble any parts that you removed to access the hose and non-return valve. Plug the dishwasher back in or turn on the circuit breaker. Run a test cycle to ensure that the dishwasher is functioning properly and that the E22 error code has been resolved.

If, after performing these steps, the E22 error code persists, there may be another issue causing the drainage problem, such as a blockage in the circulation pump or a faulty control board. In this case, you may need to consult a trained technician for further assistance.

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How to access the circulation pump

To access the circulation pump of your Bosch dishwasher, follow these steps:

Step 1: Before you begin, make sure to disconnect the power supply to the dishwasher to prevent any injuries.

Step 2: Remove the base and outer door panels. Locate and loosen the two screws holding the base panel in place, and set it aside. To remove the outer door panel, open the dishwasher door and remove the screws along the interior perimeter. Shut the door and pull the bottom of the outer door panel away from the machine. Slide the panel down and remove it from the remaining door assembly. Also, remove the inner access panel between the base panel and the outer door panel.

Step 3: Disconnect the water line and drain hose under the sink, and then gently pull the dishwasher out.

Step 4: Remove the side covers on the left and right sides of the machine, as well as the hinge link covers. This will expose the door cable hooks underneath.

Step 5: Remove the lower dish rack and the spray arms.

Step 6: Unscrew and remove the filter basket, fine filter, spray arm support, and sump supports.

Step 7: Lay the dishwasher on its back. Now, you can access the circulation pump by removing the pump cover. The exact location of the pump cover may vary depending on your dishwasher model, so refer to your user manual for specific instructions.

Once you have accessed the circulation pump, you can proceed to clear any clogs or blockages. Remember to exercise caution and wear gloves when reaching into the pump area, as there may be sharp objects or broken pieces inside.

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Frequently asked questions

The E22 error code means that your dishwasher filter is blocked, and there is still water in the dishwasher basin at the end of the cycle. This indicates a drainage problem.

To resolve the E22 error code, you need to remove and clean the dishwasher filter. First, unplug the dishwasher for safety. Then, open the dishwasher door and remove the bottom dish rack to access the filter. Next, remove the bottom spray arm to better access the filter. Now, locate and remove the filter, which is usually at the bottom of the dishwasher. Clean the filter with detergent and warm water, using a soft brush to remove stubborn debris. Finally, return the filter to the dishwasher and lock it in place.

A Bosch dishwasher filter typically consists of three components: an inner core filter surrounded by a mesh filter, which is in turn surrounded by a fine mesh filter. The filter is surrounded by a square metal mesh panel, which will also need to be removed to access the fine mesh filter.

If the E22 error code persists, there may be a blockage in the drain hose or a problem with the drain pump. In rare cases, there could be a fault with the control board, which is causing a false error code. Contact a trained technician to troubleshoot the issue.

You can prevent the E22 error code by regularly cleaning the filter to prevent food scraps, dirt, or other objects from building up and blocking the water drainage.

The Bosch Dishwasher's Secret Cleanse: Unlocking The E22's Potential (2024)
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