Bosch E22 Error Code: How to Clean a Blocked Dishwasher Filter
Updated: February 2026
The Bosch E22 error code appears when your dishwasher detects a blockage in the filtration system. This prevents proper water circulation and can leave your dishes dirty even after a full cycle.
Why Does E22 Appear?
Your dishwasher's filter captures food particles and prevents them from recirculating onto clean dishes. Over time, these particles accumulate and create a blockage that triggers the E22 error. Hard water deposits can also contribute to filter clogging.
Complete Cleaning Guide
- Step 1: Turn off the dishwasher and open the door. Remove the lower dish rack for access.
- Step 2: Locate the filter assembly at the bottom center. Turn the cylindrical filter counterclockwise and lift out.
- Step 3: Remove the flat fine filter beneath it by gently pulling upward.
- Step 4: Soak both filters in hot soapy water for 10-15 minutes to loosen stubborn debris.
- Step 5: Use a soft brush to scrub away food particles and mineral deposits. Avoid harsh abrasives that could damage the mesh.
- Step 6: Rinse filters under running water until completely clean. Check the sump area and remove any visible debris.
- Step 7: Reinstall filters by reversing the removal process. Ensure the cylindrical filter locks into place with a clockwise turn.
Run a hot water cycle without dishes to flush the system. Establish a monthly filter cleaning routine to prevent E22 errors and maintain optimal dishwasher performance.
Takeaway: Now that you understand Bosch E22 Error Code: How to Clean a Blocked Dishwasher Filter, put this knowledge into practice. Real-world experience combined with this guide will make you an expert.
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