A small amount near some filters can be normal, but a tub full of dirty water is not.
Start with these safe checks
- Check whether the kitchen sink is draining normally.
- If recently installed, confirm the drain hose was routed correctly.
- Remove visible food debris from an accessible filter.
- Stop use if the machine leaks.
- Do not use drain chemicals inside the dishwasher.
What the symptom can mean
Persistent standing water can involve the drain hose, pump, filter, air gap, disposal connection or controls.
When to arrange repair help
If the symptom continues after safe owner-level checks, or the appliance presents a water, electrical, heat or gas safety concern, stop troubleshooting and arrange professional diagnosis.
What to have ready before calling
Keep the appliance brand, complete model number, any error code, a short timeline of the problem and your location ready. Explain what happens immediately before the failure and whether the symptom is constant or intermittent.
Use model-specific information
Owner manuals and manufacturer support materials take priority over general web guidance. Procedures, error codes and component locations can differ even between appliances from the same brand.
This article provides general information, not a diagnosis for a specific appliance. Follow the manufacturer manual and use qualified help for electrical, gas, sealed-system and internal repairs.