Error code · Siemens
E:21-30 · Zeolith container intake blocked
The intake opening of the Zeolith container is obstructed by tableware. Rearrange the tableware to ensure the intake is clear.
DishwasherDIY First — Safe to Try YourselfFixLens verified
Safe first steps
- Open the dishwasher door and carefully inspect the Zeolith container area for any obstructing tableware.
- Rearrange the tableware to ensure that the intake opening of the Zeolith container is completely clear.
- Close the dishwasher door and run a short cycle to check if the error code E:21-30 has cleared.
- If the error persists after clearing the obstruction, check for any damage to the Zeolith container or its intake area before using the appliance again.
When to stop
- Stop if you notice any cracks or damage to the Zeolith container — risk of flooding.
Likely cause
The intake opening of the Zeolith container is obstructed by tableware. Rearrange the tableware to ensure the intake is clear.
Verification
Reviewed by: automated manual extraction
Verified against Siemens SN95ZX61CG technical documentation
FixLens publishes its own structured technical logic verified against Siemens SN95ZX61CG documentation · last verified April 22, 2026.
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