Bosch Dishwasher E22 Error: Clogged Filter
What Does Bosch Dishwasher Error Code E22 Mean? Error code E22 on a Bosch dishwasher means the drain filter is clogged or the drain pump is partially blocked. This prevents dirty water from being properly removed during the drain cycle, leaving residue on dishes and standing water in the tub. Common Causes The number one […]
Quick Assessment
Answer to continue safely
Is it safe to keep using?
Yes. The dishwasher is safe to use but cleaning performance will be poor. Clean the filters before the next cycle for best results.
Can I reset the code?
Yes. Cleaning the filter and running a maintenance cycle usually resolves E22 without needing a formal reset.
When to stop immediately?
Stop if you notice: Standing water remains even after cleaning filters, You hear grinding noises from the drain pump.
Symptoms You May Notice
Dirty water remains after cycle ends
Opening the dishwasher after a completed cycle reveals cloudy or dirty water at the bottom of the tub.
Food particles on clean dishes
Dishes come out with small bits of food debris redeposited during the wash.
Unpleasant odor from dishwasher
A sour or musty smell when opening the door, caused by trapped food debris decomposing in the filter.
Possible Causes
Dirty or clogged drain filter
The cylindrical filter and fine mesh screen at the bottom of the tub are blocked with food debris.
DIY PossibleBlocked drain pump impeller
A piece of glass, bone, or hard food item has jammed the drain pump impeller.
Requires ProfessionalPartially blocked drain hose
Food residue or grease has accumulated inside the drain hose, restricting flow.
DIY PossibleSafe Checks You Can Do
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1
Clean the drain filter
Remove the cylindrical filter and flat mesh screen from the bottom of the tub. Rinse under running water and scrub with a soft brush.
Turn the cylindrical filter counterclockwise to unlock it. Clean both the outer cylinder and inner mesh.
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2
Check the drain pump area
With the filter removed, look into the sump opening for visible debris like glass shards, bones, or food items.
Use a flashlight to see into the pump area. Never reach in blindly — glass fragments are common.
Tools required -
3
Run a maintenance wash
Run an empty cycle on the hottest setting with a cup of white vinegar placed on the top rack.
Monthly maintenance washes prevent grease and food buildup that causes E22.
When to Call a Professional
Contact a qualified technician if:
- Filters are clean but water still won't drain properly
- Drain pump makes grinding or clicking sounds
- Debris is visible in the pump but cannot be removed without disassembly
Need Professional Help?
Find qualified technicians in your area for proper diagnostics and repair.
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