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How do I fix the Bosch Dishwasher E22 error?

Alton Alexander
By Alton AlexanderUpdated on June 4th, 2022

Bosch dishwasher error code E22 indicates a problem with the water supply. This can be caused by a clogged water filter, a shut-off valve that is not fully open, or a water pressure that is too low.

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1. Check the drain hose and make sure it is not clogged or blocked

To check the drain hose, one would need to unplug the dishwasher and look for any debris or blockages. If there is anything obstructing the drain, then the hose may need to be replaced.

2. Check the water inlet hose and make sure it is not kinked or blocked

The first step is to check to make sure the water inlet hose is not kinked or blocked. You can do this by opening the dishwasher door and checking the hose for any obstructions. If there are any, you will need to take corrective action.

3. Clean the filters

1.Open the dishwasher door and remove the filters by unscrewing the circular cover. 2.Clean the filters with a damp cloth. Be sure to remove any food residue. 3.Replace the filters and screw the circular cover back on.

4. Clean the dishwasher tub

  1. Remove the dishwasher drain plug by unscrewing it with a wrench.
  2. Pour a pot of hot water into the dishwasher tub and wait until it reaches a boiling point.
  3. Add a cup of white vinegar and let it sit for two minutes.
  4. Remove the dishwasher drain plug and pour a pot of plain water into the dishwasher tub.
  5. Screw the dishwasher drain plug back on and wait until the plain water reaches a boiling point.
  6. Pour the boiling water and vinegar mixture into the dishwasher tub, and wait two minutes.
  7. Scrub the dishwasher tub with a brush and a hose.
  8. Pour a pot of clean water into the dishwasher tub, and wait until it reaches a boiling point.
  9. Screw the dishwasher drain plug back on, and wait until the clean water reaches a boiling point.
  10. Pour the boiling water and vinegar mixture into the dishwasher tub, and wait two minutes.
  11. Scrub the dishwasher tub with a brush and a hose.
  12. Pour a pot of clean water into the dishwasher tub, and wait until it reaches a boiling point.
  13. Screw the dishwasher drain plug back on, and wait until the clean water reaches a boiling point.
  14. Pour a pot of clear water into the dishwasher and wait until it reaches a boiling point.
  15. Turn off the dishwasher, unplug the dishwasher, and remove the dishwasher drain hose.
  16. Pour a pot of white vinegar and dishwasher cleaner down the dishwasher drain hose.
  17. Screw the dishwasher drain hose back on and wait until the cleaner reaches the dishwasher.
  18. Turn on the dishwasher and wait until it completes the cycle.

5. Check the water pressure

  1. Open the dishwasher door and look for the water pressure indicator. It will be a dial or gauge on the front or side of the dishwasher.
  2. If the water pressure is low, turn the water pressure knob on the front of the dishwasher to increase the water pressure.
  3. If the water pressure is still low, call a professional to fix the dishwasher.

6. Check the water inlet valve

  1. Open the dishwasher door.
  2. Look for the water inlet valve on the top of the dishwasher.
  3. If the valve is not working, remove the cap and check the seal. If the seal is not working, replace the valve.
  4. Replace the cap and check the seal.

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

  1. Check the dishwasher cycle.