Dishwasher Not Draining
If your dishwasher finishes a cycle but water remains at the bottom of the tub, the appliance may not be draining properly. A dishwasher is designed to pump dirty water out after each wash and rinse stage. When the drain system fails, water can collect inside the dishwasher and dishes may remain dirty or wet.
Common Symptoms
- • Standing water at the bottom of the dishwasher
- • Dishwasher finishes cycle but water remains inside
- • Dishes stay dirty or wet after washing
- • Gurgling sounds from the drain area
- • Dishwasher stops before completing the cycle
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Common Causes
Most dishwasher draining problems are related to blockages in the filter or drain system. Food particles, grease, and debris can restrict water flow and prevent the drain pump from removing water from the tub. In other cases the pump itself may fail or the drain hose may become blocked or kinked.
Why a Dishwasher May Not Drain
Dishwashers rely on a small drain pump to remove dirty water from the tub during the wash cycle. If this pump becomes blocked by debris or fails electrically, the dishwasher cannot push water through the drain hose and out of the appliance.
Another common issue occurs at the connection between the dishwasher and the kitchen sink plumbing. If the dishwasher is connected to a garbage disposal, the drain port may become blocked by food waste or may still have the factory knockout plug installed.
In some installations an air gap device is used to prevent contaminated water from flowing back into the dishwasher. If this air gap becomes clogged, it can restrict water flow and prevent the dishwasher from draining properly.
Check These Four Things Before Calling Anyone
- 1
Scoop the standing water out with a cup and a towel, then lift out the bottom rack and unscrew the filter in the floor of the tub.
Food debris packed into the filter is the single most common cause. Rinse it under a tap, put it back, and run a short cycle. If it drains, that was it.
- 2
If you have a garbage disposal, check whether it was installed recently.
A new disposal ships with a knockout plug in the dishwasher inlet. If nobody removed it, the dishwasher has nowhere to drain and never will until it comes out.
- 3
Run the disposal for ten seconds, then start a rinse cycle.
A disposal packed with waste blocks the shared drain line. If the dishwasher drains afterwards, the disposal was the obstruction, not the dishwasher.
- 4
Look under the sink at the drain hose where it loops upward.
A hose crushed behind a stored bucket or sagging below the connection traps water. Straightening it is free; if the water still sits, the fault is inside the machine.
Stop and call someone if
- ! The filter, disposal and hose are all clear and the water still will not go down - at that point it is the drain pump or the control board.
- ! The machine hums but nothing moves when it should be draining.
- ! Water is escaping onto the floor as well as sitting in the tub.
- ! You can smell burning, or the cycle stops partway with an error code.
How to Check the Problem
Related Appliance Problems
- dishwasher not draining water
- dishwasher full of water after cycle
- dishwasher not draining but running
- dishwasher drain pump not working
- dishwasher standing water in bottom
Similar Problems We Fix
Tried all that and it still will not work?
That is usually the point where the fault is a part rather than a setting. The diagnostic visit is $99 and you get the repair price before any work starts - so you can decide with the number in front of you.
Read about dishwasher repair or see the areas we cover .
Appliance Brands We Service
- Samsung
- LG
- Whirlpool
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- GE
- GE Profile
- Café
- Hotpoint
- Kenmore
- KitchenAid
- Bosch
- Thermador
- Frigidaire
- Electrolux
- Amana
- JennAir
- Miele
- Viking
- Sub-Zero
- Wolf
- Fisher & Paykel
- Speed Queen
- Dacor
- Bertazzoni
- Blomberg
- Asko
- Haier
- Hisense
We repair most major appliance brands including Samsung, LG, Whirlpool, Maytag, GE, GE Profile, Café, Hotpoint, Kenmore, KitchenAid and many more.
Dishwasher Repair Available In
Professional appliance repair services available across Middle Tennessee.
Frequently Asked Questions
Why is my dishwasher not draining but still running?
The dishwasher may continue operating even if the drain system is partially blocked. Water may remain inside if the filter, drain hose, or pump cannot remove water efficiently.
What causes standing water in the bottom of a dishwasher?
Standing water usually indicates a clogged filter, blocked drain hose, or a failing drain pump that cannot remove water from the tub.
Can a clogged filter stop a dishwasher from draining?
Yes. When the filter becomes clogged with food debris, water flow can be restricted and the drain pump may not be able to remove water properly.
Is it safe to run a dishwasher that is not draining?
It may continue to run but standing water can lead to poor cleaning performance and may indicate a drain system problem that should be repaired.
Need Professional Dishwasher Repair?
Quick Repair Co provides fast in-home appliance repair across Franklin and surrounding Middle Tennessee communities.