How often should I clean the dishwasher filters?

The filter cleaning interval depends on your usage habits and water hardness. For light to average use with normally attached food soils that have been scraped, clean the filters 3-6 times a year. For heavy use, clean them 8-12 times a year. You should also clean the filter system after washing loads with large amounts of food soils or heavy starch content like potatoes and pasta.