Bosch Dishwasher Error Code E22
The filter at the bottom of the tub is clogged with food and grease, so water cannot circulate or drain away properly and may be left standing in the base. This is the easiest Bosch code to fix and needs no tools. Cleaning the filter regularly stops it coming back.
Also shown as: E9240
Common causes
- Food particles clogging the fine filter
- Grease build-up on the filter mesh
- Filter not seated correctly after cleaning
- Long interval since the filter was last cleaned
What to check, in order
- Twist out the filter assembly at the bottom of the tub.
- Rinse it under running water with mild soap and a soft brush to clear the mesh.
- Check the sump under the filter for leftover debris before refitting.
- Refit the filter, lock it into place and run a short cycle to confirm the code is gone.
Clear the code and test
- Fix what the checks above found first — a filter cleaned, a hose straightened, the spray arms freed. Clearing the code without fixing the cause only brings it back.
- Close the door, plug the dishwasher back in (or restore its breaker) and make sure the water tap is open.
- Run the shortest programme and stay nearby for the first minutes, watching for leaks and listening for the drain pump.
- If the programme finishes with no code, the fault is cleared. If the code returns, write down the code and when it appeared before calling a technician — it speeds up the diagnosis.
When to call a professional
Most cases are solved by the checks above. Book a technician if any of these apply:
- The code comes back after you have run the checks and a test cycle.
- You smell burning, see sparks or scorch marks, or the breaker trips.
- Water is leaking and you cannot stop it at the tap.
- The fix needs panels opened beyond what your manual describes, or a part tested with a meter, and you are not set up for that.
When you call, give the brand, the code E22, your model number (on a label inside the door or on the back) and the checks you already ran. It shortens the visit.
Parts that may be involved
Filter assembly (coarse and fine filter)Sump cover
Parts are model-specific. Find your model number first — usually on a label inside the door, on the door frame or on the back — and match the part to that number before ordering.
Questions people ask about E22
What does E22 mean on a Bosch dishwasher?
E22 means: Dishwasher filter is blocked. The filter at the bottom of the tub is clogged with food and grease, so water cannot circulate or drain away properly and may be left standing in the base. This is the easiest Bosch code to fix and needs no tools. Cleaning the filter regularly stops it coming back.
Can I fix Bosch E22 myself?
Usually, yes. Code E22 is rated DIY-friendly: the checks on this page cover the common causes and use basic household items only. If the code returns after the checks and a test cycle, book a technician.
How do I clear Bosch E22?
Fix the cause first — clearing the code on its own brings it straight back. Then restore power and water, run the shortest programme, and watch the stage where the code appeared. If the programme finishes with no code, it is cleared.
Sources checked
- Bosch Home (US) owner support: dishwasher error codes
- Coolblue advice: Bosch and Siemens washing machine errors
The meaning and checks for this code were checked against the sources above in November 2026. Codes vary by model and region; if your manual lists a different meaning for your exact model, follow the manual.