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How do I fix the F21 error code?

Alton Alexander
By Alton AlexanderUpdated on June 4th, 2022

The f21 error code is a code that indicates that there is a problem with the washer's drain pump. This error code can be caused by a variety of things, such as a clogged drain, a blockage in the drain hose, or a problem with the drain pump itself. If you see this error code, it is important to try to clear the drain and/or the hose before calling a technician.

Other common searches for this error include:

  • f21 error code
  • f21 error code whirlpool washer

1. Run the troubleshooter

  1. Click on the Start button.
  2. In the search box, type "cmd" and press Enter.
  3. In the command prompt, type "dism /online /enable-feature /featurename:" and press Enter.
  4. In the command prompt, type "fc /scannow" and press Enter.
  5. If the problem is with the Windows feature F21, the command prompt will display a list of possible solutions.
  6. If the problem is not with the Windows feature F21, the command prompt will display a list of possible solutions.
  7. Select one of the solutions from the list and press Enter.
  8. Follow the instructions that are displayed in the command prompt.

2. Update your PC's BIOS

  1. Open the BIOS or UEFI firmware setup program that came with your computer.
  2. If you are using a computer that has a built-in BIOS, go to the main menu and select Boot Manager.
  3. In the Boot Manager window, select your desired device to start the BIOS update process.
  4. If you are using a computer that has a UEFI firmware, go to the main menu and select Settings.
  5. In the Settings window, select Update & Security.
  6. In the Update & Security window, select BIOS/UEFI Update.
  7. In the BIOS/UEFI Update window, select the Update Option you want to use.
  8. In the Select Update Option window, select the Update Method you want to use.
  9. In the Update Method window, select the Update BIOS or Update UEFI.
  10. In the Update BIOS or Update UEFI window, select the Update Files you want to use.
  11. In the Select Update Files window, select the Update File you want to use.
  12. In the Select Update File window, select the Update File location.
  13. In the Update File location window, select the Update File you want to use.
  14. In the Confirm Update File window, select the Update File to start the BIOS update process.
  15. If you are using a computer that has a UEFI firmware, the BIOS update process will start automatically. If you are using a computer that has a BIOS, you will need to press the Enter key to start the BIOS update process.
  16. The BIOS update process will start and you will see a message stating that the update has started.
  17. After the update process is complete, you will be able to restart your computer.

3. Check for loose cables

The first step is to identify any areas where there may be loose cables. This can be done by visually inspecting the area for any signs of cable movement or visible damage. If there are any loose cables, the next step is to use a cable tester to check for any errors. If there are any errors, the cables will need to be replaced.

4. Test your RAM

  1. Go to Start and type in “cmd”.
  2. Once the command prompt pops up, type in the following command: memory test
  3. If the RAM is working properly, the command prompt should return with no errors. If there are any errors, then you will need to fix them.
  4. To fix any errors, you will need to type in the following command: chkdsk C:
  5. Once the chkdsk command is complete, you will need to restart your computer.

5. Replace your RAM

  1. Disconnect all cables from the computer.
  2. Remove the battery if present.
  3. Remove the cover and screws securing the motherboard to the case.
  4. Locate and remove the RAM modules.
  5. Replace the RAM modules.
  6. Reattach the cover and screws.
  7. Reconnect the cables.
  8. Replace the battery.

If the answers above didn't work then you should also try:

  1. Update your graphics drivers
  2. Check for overheating
  3. Run a virus scan
  4. Reinstall Windows