Standing water after a dishwasher cycle usually means the water path is restricted somewhere between the tub, filter, drain hose, sink connection and pump area. The water level and the sound you hear can narrow the next safe check, but they cannot identify a failed part by themselves.
Switch the dishwasher off before touching the filter. Filter edges can be sharp. Do not reach toward a powered pump or remove panels to test a hidden component.
First, note where the water is sitting
Look at the location and depth of the water before wiping it out. Is it spread across the tub floor, gathered around the filter, or returning immediately after a drain attempt? The pattern helps separate a restricted path from a cycle that never reached the drain stage.
Some dishwashers leave a small amount of water around the filter area by design, but a pool that covers the filter or remains after a completed drain attempt deserves attention. Compare the result with the owner’s manual for the exact model.
Check the filter area without reaching into the pump
A common pattern is debris around a round gray filter, with food particles or a small piece of glass near the impeller area. That obstruction can keep water from leaving even when the rest of the cycle looked normal.
Turn off power before removing the user-cleanable filter. Lift it according to the manual, rinse it, and look for visible debris around the opening. Do not push a hand, tool or cloth into a powered pump opening. If glass is present or the filter will not release normally, stop and arrange service.
Separate a blocked hose from a blocked sink connection
The drain hose must carry water away from the dishwasher and into the approved sink or disposer connection. A kinked hose, a blocked connection or an installation loop that does not match the instructions can leave the tub full.
Check only the visible hose and connection points that your installation guide allows. Do not disconnect a water line or pull the dishwasher out while it is full of water. If the sink itself drains slowly, clear that plumbing issue before deciding that the dishwasher pump has failed.
A humming sound does not prove that water is moving
A GE GDT665SSN4SS can present a failure-to-drain pattern in which the pump hums but the water remains. A Samsung DW80F600UTS can also hum without water leaving the tub. In both situations, the sound tells you that something is attempting to run; it does not prove that the path is clear or that the pump is healthy.
Listen only from outside the closed or safely opened door. Do not touch the pump while power is connected. Record whether the hum starts at the drain portion of the cycle and whether the water level changes afterward.
What the pattern can—and cannot—tell you
| What you observe | Possible explanation | What it cannot prove | Next step |
|---|---|---|---|
| Water remains around the filter | Debris may be restricting the inlet to the drain path | That the pump itself has failed | Power off, clean the permitted filter, and inspect only visible debris |
| Water returns after a drain attempt | Hose, sink connection or pump path may be restricted | Which hidden part is blocked | Check visible hose and sink connection against the manual |
| Pump hums but the water level does not change | The pump is attempting to run without moving water effectively | That the pump must be replaced | Stop touching the machine and contact support if external checks do not help |
| Sink or disposer also drains slowly | A shared plumbing connection may be involved | That the dishwasher is the source | Resolve the plumbing restriction first |
| Glass or hard debris is visible near the filter opening | Foreign material may be obstructing the path | That removing it by hand is safe | Disconnect power and arrange service if it is not clearly user-removable |
A safe check sequence
- Stop the cycle and disconnect power using the normal appliance control and the household switch allowed by the manual.
- Remove standing water with a container or towel so the filter area is visible.
- Remove and rinse the user-cleanable filter if the manual permits it.
- Inspect the visible filter opening for food debris or glass without reaching into the pump.
- Check the visible drain hose and sink connection for a kink or obvious blockage.
- Restore power only when the filter and cover are correctly seated.
- If the water remains or the pump only hums, use the manufacturer’s service path.
Clean the filter first. Keep your hands out of the pump.
When to stop checking on your own
Stop when the filter will not release, glass is lodged in the pump area, water is leaking toward wiring, the dishwasher repeatedly trips a breaker, or the next step would require removing a panel or testing a component. A drain problem can involve parts that are not safe to diagnose from the open tub.
Have the model number, the cycle selected, the water level and the sound you heard ready for support. Tell them whether the sink or disposer also drains slowly.
FAQ
Why is my dishwasher not draining after a normal cycle?
Start by noting the water level, then check the user-cleanable filter and visible hose connection with power off. If the water stays or returns, the remaining cause needs model-specific support.
Why does my dishwasher hum but not drain?
The pump may be attempting to run while water is blocked from moving. A hum cannot distinguish a filter obstruction, hose restriction or pump problem.
Can I reach into the dishwasher pump to remove debris?
Do not reach into a powered pump. If glass or hard material is lodged beyond the user-cleanable filter, stop and arrange service.
Should I check the sink connection too?
Yes, if it is visible and the installation instructions allow the check. A shared sink or disposer restriction can prevent dishwasher water from leaving.
Sources and verification
These manufacturer pages support the external checks and safety boundaries in this article. Drain layouts and permitted cleaning steps vary by model.
Sources checked September 19, 2026.