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How to Fix the F 21 Washer Code?

Alton Alexander
By Alton AlexanderUpdated on June 3rd, 2022

The F21 code on a Whirlpool washing machine indicates that there is a problem with the drain. This code is usually caused by a blockage in the drain hose or pump. If the drain is clear and the code persists, the problem may be with the drain pump or control board.

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1. Check the drain hose for kinks or blockages

  1. Locate the drain hose on your washing machine.
  2. Inspect the drain hose for any kinks or blockages.
  3. If you find any kinks or blockages, remove them and try again.
  4. If the problem persists, call a qualified technician to service your washing machine.

2. Clean the drain pump filter

  1. Start by unplugging the washing machine from the power outlet.
  2. Next, locate the drain pump filter. The filter is usually located on the front or back of the washing machine.
  3. Once you have found the filter, remove it from the washing machine.
  4. rinse the filter with warm water until all the debris and dirt is removed.
  5. Finally, replace the filter and reattach it to the washing machine.

3. Inspect the drain pump for debris

  1. Drain the washer: Unplug the washer and remove the drain hose from the drain pump. Place the end of the hose in a bucket. Restart the washer and let it run until it’s empty.
  2. Inspect the drain pump: Remove the drain pump from the washer. Inspect the pump for any debris that may be blocking the impeller.
  3. Clean the drain pump: If there is debris blocking the impeller, use a small brush or toothpick to remove it. Be careful not to damage the impeller.
  4. Reassemble the washer: Put the drain pump back in place and reattach the drain hose. Plug the washer back in and run a test cycle to make sure the error code is gone.

4. Check for a clogged or blocked drain line

  1. Check the drain line for any clogs or blockages.
  2. If there are any clogs or blockages, clear them out and try again.
  3. If the problem persists, call a professional to help fix the issue.

5. Inspect the washing machine’s fill hoses for kinks or blockages

  1. Unplug the washing machine's power cord from the outlet.
  2. Turn off the water supply to the washing machine.
  3. Place a bucket underneath the washing machine's fill hoses.
  4. Remove the washing machine's fill hoses from the back of the machine.
  5. Inspect the hoses for any kinks or blockages.
  6. If there are any kinks or blockages, use a pair of pliers to gently straighten out the hose or remove the blockage.
  7. Reattach the fill hoses to the back of the washing machine.
  8. Turn on the water supply to the washing machine.
  9. Plug the washing machine's power cord back into the outlet.

6. Clean the inlet screen on the washing machine

1.Unplug your washing machine from the power outlet. 2.Remove the screws from the back of the washer that hold the access panel in place. 3.Remove the access panel and set it aside. 4.Locate the inlet screen on the water inlet valve. 5.Remove any debris or foreign objects from the inlet screen and rinse it off with water. 6.Replace the access panel and screw it back into place. 7.Plug your washing machine back in and turn it on.

7. Check the home’s water supply

  1. Check the home’s water supply to ensure that there is enough water pressure and that the water supply is not turned off.
  2. Check the washing machine’s inlet hose to ensure that it is not kinked or blocked.
  3. Check the washing machine’s fill valves to ensure that they are not clogged or blocked.
  4. If the washing machine has a lint filter, check it to ensure that it is not clogged or blocked.
  5. If the washing machine is connected to a water softener, check to ensure that the water softener is working properly.
  6. If the washing machine is connected to a water filter, check to ensure that the filter is not clogged or blocked.
  7. If the washing machine is connected to a water purifier, check to ensure that the purifier is not clogged or blocked.