Direct answer
A small clean pool in the sump can be normal because it keeps seals wet. Water above the filter, dirty standing water, odor, a drain error or backflow from the sink is not the same condition.
What this covers
- A dishwasher after a completed cycle with no active drain error
- The exact condition described in the direct answer
- Customer-accessible observations and controls
What it does not cover
- ×A different model, region or software interface that contradicts the cited source
- ×A displayed code with a separate manufacturer meaning
- ×Live electrical, gas, sealed-system or battery-cell repair
Establish the exact starting state
ReversibleCompare the water line with the filter/sump geometry and note whether it is clean or dirty.
Separate the fault or decision boundary
ReversibleRun Cancel/Drain and inspect filter, air gap, disposal inlet and hose high loop.
Apply the narrowest correction
ReversibleClean the accessible drain path and correct sink backflow only when the water is excessive or contaminated.
Verify before escalating
ReversibleRun an empty rinse and recheck after ten minutes and again after sink use.
Evidence ledger
Sources behind this answer
Visible sources support the visible claims. Home Product Support records the publisher, the fact used and the review date; community reports can suggest an issue but do not become a published fact on their own.
Exact questions
Common follow-ups
What is the short answer to “Is a small amount of water below the dishwasher filter normal”?+
A small clean pool in the sump can be normal because it keeps seals wet. Water above the filter, dirty standing water, odor, a drain error or backflow from the sink is not the same condition.
What should I check before changing anything?+
Compare the water line with the filter/sump geometry and note whether it is clean or dirty.
How do I know the action worked?+
Run an empty rinse and recheck after ten minutes and again after sink use.
When should I stop?+
Disconnect power before reaching into the sump and use care for broken glass.
Answer for the exact device and software version shown above.