If the filter is clean and water still pools, the next culprit is often the drain hose. This rubber or plastic hose runs from the dishwasher to the garbage disposal or a dedicated drainpipe under the sink. To inspect it, you will need to pull the dishwasher out from under the counter (disconnect the mounting screws first) or access it via the sink cabinet. Disconnect the hose from both ends—be prepared for residual water to spill out, so keep a bucket and towels handy. Check the hose for kinks or sharp bends that could restrict flow. To clear internal blockages, use a long, flexible brush designed for drain hoses or blow compressed air through it. Alternatively, you can run a garden hose through it to flush out debris. Never use a standard plumber’s snake, as the powerful auger can puncture the hose.

Create a small hook at the end of a long wire coat hanger.

Unfasten the retaining screws holding the plastic guard down if applicable.

Use a large sponge to absorb the last shallow puddles of water.

Remove the plastic retaining nut or unsnap the internal hood cover.

Find the flexible ribbed line connecting the dishwasher pump to the sink drain.