What to check, in order
- Disconnect the power
Switch off and unplug the dishwasher.
- Take the filters out
Twist and lift the filter assembly out of the bottom of the tub.
- Wash them
Under running water with mild soap and a soft brush. Don't use abrasive cleaners.
- Refit them
Make sure they lock back into place.
When to call an engineer
Only if it keeps happening after a thorough clean.
Parts people end up buying
Only if the checks above point to a part. Match it to your model number first: it's on a label on the edge of the door or the side of the tub.
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Checked against
Last reviewed September 2026. Manufacturers update their pages, and your manual is the final word.