What Does E21 Mean On Bosch Washer? (Explained)

Are you facing an E21 error code on your Bosch washing machine and wondering what it means and how to fix it? You’ve come to the right place! 

In this article, we’ll explain everything you need to know about the E21 error code on Bosch washing machines, including the Bosch Maxx 8 and Bosch Avantixx models. We’ll also provide you with some tips on how to fix the error and reset your machine.

If you’re seeing an E21 error on the LCD of your Bosch washing machine, it means its drive motor is not working. The other you can test the control board when the motor works fine but this code persists.

Let’s dive deeper into this troubleshooting guide on the E21 Bosch washer code.

What Does E21 Mean On Bosch Washer

What does E21 mean on Bosch Washing Machine?

Technically, the E21 error code is a common issue that occurs in Bosch washing machines. It is an indication that there is a problem with the motor or the control board of the machine. This warning is usually accompanied by a beeping sound, and the machine will stop working.

If you’re facing this issue currently, you should check if there is any noise coming from the washer. 

In case some noise is audible, may the motor carbon brushes be worn out, and maybe the motor will work after the replacement of the carbon bushes.

If you don’t know if a washer motor gets faulty, here’s the answer: Practically, there are several reasons why a washer motor can fail, including wear and tear, overheating, electrical problems, or mechanical breakdown. As a result, the motor may start making noise, malfunctioning, or stop working altogether.

However, first, you should investigate the actual cause then it will be easier for you to fix the issue.

Bosch maxx 8 Washing Machine error codes e21?

If you’re a user of a Bosch Maxx 8 washing machine, you may encounter the E21 error code. The Bosch Maxx 8 washing machine is a popular model, but it is not immune to error codes like E21. 

If you see the E21 error code on your Bosch Maxx 8 washing machine, it means that the drive motor is not tuning and the drum fails to spin. If the motor is working then the control board is dealing with temporary or permanent faults.

Bosch Avantixx Washing Machine E21:

The Bosch Avantixx washing machine is another popular model that can also encounter the E21 error code. In case you see an E21 error code on your Bosch Avantixx washing machine you will need to fix the drive motor as it is dealing with the problem. 

However, you must reset your unit first to verify if the error persists after resetting it.

How to fix E21 on the Bosch washing machine reset?

Now that you know what the E21 error code means, let’s talk about how to fix it. You will require tools such as a multimeter, screwdriver, pliers, wrench, replacement parts, lubricant, and cleaning supplies.

Here’s how to fix the motor of a Bosch washer when it displays the E21 error code:

  1. Unplug the washing machine from the power source to prevent electrocution.
  2. Remove the back panel of the washing machine to access the motor.
  3. Locate the motor of the washing machine.
  4. Check for any visible signs of damage or wear and tear such as broken wires, loose connections, or damaged bearings.
  5. Carefully detach the motor from the washing machine.
  6. Test the motor windings with a multimeter to check if they are functioning correctly.
  7. Check the brushes of the motor to ensure that they are not worn down or damaged.
  8. Replace any worn or damaged parts of the motor such as the brushes or bearings.
  9. Reattach the motor to the washing machine.
  10. Replace the back panel and plug the washing machine back in.
  11. Turn on the washing machine to ensure that the motor is now functioning correctly.

If you have ruled out all of these potential issues, then the motor may need to be replaced.

Note: It is important to note that the above-described steps are general and may not apply to all models of Bosch washing machines. It is always recommended to consult the manufacturer’s instructions.

If you found that the motor of your washer is not the issue, the problem may be with the control board. The control board may be malfunctioning, and this can cause the E21 error code to appear. 

Before thinking of replacing it, You can try a bosch washing machine reset to see if this fixes the issue first. 

To reset the control board, follow the below steps:

  • Press and hold the start button for five seconds.
  • Release the button.
  • Wait for a few seconds, and then press the start button again.
  • The machine should now start to reset.

If resetting the control board doesn’t work, you may need to replace it.


Dealing with the E21 error code on your Bosch washing machine can be frustrating, but it is not impossible to fix. If you encounter this error code, you should first turn off the machine and unplug it from the power source. Then, check the motor for any signs of damage. If the motor is not the issue, you can try resetting the control board. 

I hope this article has helped explain what the E21 error code means and how to fix it.