Guided check
0/3 checkedMatch the symptom, then work through the safe checks.
1. What best matches what you observe?
2. Complete only the checks that are safe for you.
Stop before pump removalInternal pump and wiring access requires qualified service.Professional
3 user-level checks are available in this guide.Stop immediately if any warning condition applies.
Show stop conditions
- Broken glass may be in the sump
- Water reaches wiring or the floor
- Internal pump access is required
Likely causes
- The filter or sump is blocked with debris
- The drain hose is kinked or restricted
- The sink air gap or disposer connection is blocked
- The drain pump is jammed or not running
- The cycle was interrupted before the final drain
Quick checks, in order
Cancel and drain once
Listen for the drain pump and observe whether water reaches the sink drain.
Clean the removable filter
Disconnect power and follow the model instructions for filter removal.
Inspect the drain path
Check the hose, air gap, high loop, and disposer inlet for a visible restriction.
Stop before pump removal
Internal pump and wiring access requires qualified service.
What happens during drain?
The pump hums
A blockage, jam, or restricted hose is likely.
The pump is silent
The pump, wiring, door switch, or control may need diagnosis.
Water returns after draining
The hose routing, air gap, sink drain, or check valve may allow backflow.
Stop and get qualified help when
Do not continue troubleshooting if any of these apply:
- Broken glass may be in the sump
- Water reaches wiring or the floor
- Internal pump access is required
Frequently asked questions
Is a small amount of water under the filter normal?
Some models retain a small amount in the sump. Water covering a large part of the tub is not normal.
Can a newly installed disposer cause drainage problems?
Yes. The dishwasher inlet plug must be removed during installation where applicable.
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