We suggest cleaning up the filter each to 4 months depending upon use and after cleaning loads with big quantities of food soils and starch. This will assist your dishwashing machine keep optimum efficiency. The filter lies on the bottom of the dishwashing machine.
Find out how to clean your dishwashing machine:
https://www.thermador.com/us/support/customer-care/dishwashers/how-to-clean-your-dishwasher
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