Before you grab a wrench, you need to understand the three places where debris hides. Cleaning just the filter is like washing only the top of a muddy car.
If your dishwasher has pooled water at the bottom, you must remove it to access the drain. Remove the bottom dish rack. Use a cup to bail out the bulk of the water into a bucket. how to clean out a dishwasher drain exclusive
: On many models, you can pry off a small plastic pump cover (sometimes secured by a screw). Clear Debris Before you grab a wrench, you need to