Filter blocked — drain filter clogged preventing proper water drainage
The E22 error on the Bosch SHPM88Z75N indicates filter blocked — drain filter clogged preventing proper water drainage. This typically occurs due to coarse filter clogged with food debris and residue. Most homeowners fix this in 15–20 min by following the steps below.
Common Causes of E22
- 1Coarse filter clogged with food debris and residue
- 2Fine mesh filter covered with grease or mineral deposits
- 3Filter not cleaned for an extended period
- 4Dishwasher used without pre-rinsing heavily soiled dishes
How to Fix E22
- 1
Step 1
Stop the dishwasher and unplug it from power
- 2
Step 2
Remove the bottom rack to access the filter assembly at the tub floor
- 3
Step 3
Turn the cylindrical coarse filter counterclockwise and lift it out
- 4
Step 4
Remove the flat fine mesh filter beneath it
- 5
Step 5
Rinse both filters under warm running water and scrub with a soft brush to remove grease and food particles
- 6
Step 6
Soak the filters in warm soapy water for 5 minutes if heavily soiled with grease
- 7
Step 7
Reinstall both filters firmly, replace the bottom rack, restore power, and run a quick rinse cycle
Tools Needed
When to Call a Technician
Error returns after thorough filter cleaning — the drain pump or control board drain circuit needs professional diagnosis
Frequently Asked Questions
Common questions about Bosch E22 error
This is one of the easiest Bosch fixes. Remove the cylindrical filter from the tub floor (turn counterclockwise, lift straight up), grab the flat mesh filter underneath, and rinse both under running water with a soft brush. The whole thing takes about 15 minutes. Clean your filter monthly to keep E22 from coming back.
Bosch recommends cleaning the dishwasher filter at least once a month. If you run the dishwasher daily or frequently wash heavily soiled pots and pans without pre-rinsing, clean the filter every two weeks. Unlike many competing brands, Bosch dishwashers use a manual filter that requires regular cleaning — they do not have a self-cleaning shredder.
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