Drain-path decision tool
Why Is Water Standing in My Dishwasher?
Answer seven observable questions to separate normal retained water, a filter check, sink-side backflow, and symptoms that need service.
This tool separates normal sump water from filter trouble, sink-side backup, disposal installation mistakes, backflow, and faults that need service.
No model number or personal information required. Your answers stay in this browser and are not submitted to us.
What counts as standing water?
A small amount below the filter surface can be normal on many models because seals and pumps may retain water. A visible pool across the flat tub floor, dirty water covering the filter, or water that returns after draining deserves attention.
Compare the level with your owner’s manual. Do not reach into cloudy water until power is disconnected; broken glass can hide below the surface.
The drain path this tool follows
- Filter and filter well inside the tub.
- Drain hose route under the sink.
- Air gap or high-loop backflow protection.
- Garbage disposal inlet or sink drain connection.
- Drain pump, wiring, and controls—which belong with qualified service.
Use the full standing-water sequence
After the tool narrows the timing and sink-side clues, continue with Dishwasher Standing Water After Cycle. If the tub is too full to inspect safely, begin with How to Drain a Dishwasher with Standing Water.
Common questions
Standing Water Diagnosis FAQ
- Is a little water below the filter always a drain problem? No. Some designs retain a small amount in the sump or filter well. Compare the location and level with the model manual. A pool across the tub floor, dirty water covering the filter, overflow risk, or water that returns later is a different pattern.
- Why does the tool ask what the kitchen sink is doing? The dishwasher often shares a downstream drain path with the sink, disposal, or air gap. Slow sink drainage, gurgling, backup, or a symptom that follows plumbing work can move the next check outside the appliance rather than proving a bad pump.
- Can I keep running cycles to see whether the water clears? Do not repeatedly run the machine when water remains, returns, approaches overflow, smells like wastewater, or accompanies leaking or electrical symptoms. Complete only the safe visible checks allowed by the manual, then use appliance service or a plumber for the indicated branch.