e22
Moderate
Bosch · Dishwashers
Fine filter blocked - residual water in sump
Quick Answer
Error code E22 on your Bosch Dishwashers means: Fine filter blocked - residual water in sump. This is usually fixable — see the step-by-step guide below.
Affected Models
Likely Causes
  1. Fine filter clogged with food particles and debris
  2. Calcium or limescale buildup in the drain filter
  3. Blocked drain hose
  4. Non-return valve or circulation pump obstruction
How to Fix It
1
Open the dishwasher and remove the bottom rack.
2
Twist and remove the fine filter assembly from the bottom of the tub.
3
Rinse the filter under running water, using a soft brush and mild soap to remove debris.
4
Inspect the drain hose for kinks or blockages.
5
Check the sump area for any remaining debris or residual water.
6
Reinstall the clean filter and run a test cycle.
Pro Tip
This fix requires some technical knowledge. If you're unsure about any step, consider contacting support or a qualified technician.
Parts You May Need
Replacement filter (if damaged)
Related Error Codes
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