Why Is There Water at the Bottom of My Dishwasher?
A small amount of water in the dishwasher's sump is normal, but standing water usually means a clogged filter, drain hose, or air gap.
Short answer: Most drainage failures come from a clogged drain filter or pump, a kinked or crushed drain hose, or a blocked standpipe — in that order of likelihood. Clearing the filter fixes the majority of cases in under 20 minutes.
Front-loading and high-efficiency top-loading washers share a similar drain path: pump filter → drain hose → household drain line. Working through the checklist in that order finds the blockage fastest, since the filter is both the easiest to check and the most common culprit.
1. Clogged drain filter
Lint, coins, hair ties, and small fabric fibers collect in the pump filter over time until water can no longer pass through it.
2. Kinked or crushed drain hose
If the machine was recently moved or pushed against a wall, the flexible drain hose can bend sharply enough to block flow.
3. Blocked standpipe or drain line
The wall standpipe the hose empties into can clog with lint and detergent residue, especially in older plumbing.
4. Failed drain pump
The pump motor or its impeller can wear out or jam on a foreign object, so it can't push water out even with no blockage.
5. Overloaded or unbalanced load
An extremely heavy or lopsided load can trip a safety sensor that pauses the drain cycle before it completes.
Cut power and place towels down
Unplug the washer. Water will spill when you open the filter, so lay towels or a shallow tray in front of the access panel.
Open the drain filter and empty it
Most front-loaders have a small round filter cap behind a flap near the bottom front. Turn it slowly counter-clockwise — water will drain out — then pull it fully and remove lint, coins, or debris.
Check the drain hose
Pull the machine out slightly and inspect the corrugated drain hose for kinks, tight bends, or a crushed section. Straighten it and re-route it if needed.
Clear the standpipe if the hose and filter are clean
If water still won't drain, the wall standpipe may be blocked. A wet/dry vacuum on the standpipe opening can pull out a soft clog.
Run a drain or spin cycle to confirm
Reassemble the filter, plug the machine back in, and run a drain-only or spin cycle to confirm water clears completely.
Safety warning
Always disconnect power before opening any access panel, and never touch electrical components with wet hands. If you smell burning or see scorch marks near the motor, stop and call a licensed appliance technician.This usually means the pump is trying to push water out but can't, most often because the filter or hose is blocked. If the pump itself has failed, you may hear no drain noise at all.
Avoid starting a new wash cycle until the standing water is dealt with — it can overflow or add strain to an already struggling pump.
Every 1–3 months for average use, or more often if you regularly wash pet bedding, sandy items, or items with loose fibers.
Home Solutions Editorial Team
Reviewed against manufacturer documentation. Updated July 18, 2026. How we write guides
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