Cleaning this filter is a low-tech but critical process. It should be rinsed under hot running water and scrubbed with a soft brush or toothbrush to dislodge grease and stuck-on debris. Beneath the filter basket lies the sump area—a shallow well where water collects before entering the pump. This area must be inspected for large debris, such as cherry pits, corn cobs, or shards of broken glass that may have bypassed the filter screen. Removing these obstructions often resolves the issue immediately.
Run the disposal: Clear any food waste from the disposal before starting a dishwasher cycle.Inspect the air gap: If you have a small chrome cylinder on your sink, that is the air gap. Remove the decorative cover and the inner plastic cap. Look for any debris or buildup and clear it out. Step 4: Inspect the Drain Hose how to unclog a dishwasher