When not in use, water in the bottom of a dishwasher can be caused by a few factors. One common reason is a blocked or clogged drain or garbage disposal. Food particles and debris can accumulate in the drain or disposal, preventing the dishwasher from draining properly.
Another reason could be a malfunctioning or damaged drain pump, which is responsible for pumping water out of the dishwasher. Another common reason could be a leaking dishwasher door, allowing water to seep out and collect in the bottom of the dishwasher.
Additionally, a malfunctioning water inlet valve that controls water flow into the dishwasher can accumulate water in the bottom. In any case, it’s best to consult the user manual and/or contact the manufacturer or a professional to help identify and fix the issue.
This article discusses what causes water to stand at the bottom of the dishwasher when not in use. Besides, we have given effective fixes to help drain the standing water.
Should Dishwasher Have Water in Bottom
Yes, the dishwasher should have water in the bottom. However, it should be at most two cups. The water results from the condensation drying principle, which causes water droplets in the tub to collect at the bottom of the dishwasher.
Also, if you have a blocked filter, the appliance won’t pump water outside effectively, causing water to collect at the bottom of the dishwasher.
Water Collecting in the Bottom of the Dishwasher
If your dishwasher has water at the bottom, you may need to repair it. But before you call a professional to fix it, try the following fixes.
- Disconnect your dishwasher from the electrical panel’s circuit breaker to prevent electric shock.
- Scoop the water out using a small container. Use a towel to soak up any remaining moisture.
- Check if the drainage system is blocked. If so, remove any food particles and debris on it to unblock it.
- Clean the drain basket and remove debris using a wire hanger.
- Check the pump impellers to ascertain that no debris or broken glass is present. Remove debris and other foreign particles blocking the way.
- At the bottom of the dishwasher, there is a sprayer arm. Pop it out and check if food particles or debris are blocking its holes. If any, remove them with a wire hanger.
- With warm water, rinse the sprayer arms while removing all food particles.
- Find your user manual and locate where the dishwasher filter is. You’ll mostly find it at the rear side of the appliance near the bottom. Unscrew it to remove it from the appliance.
- Rinse the filter’s screen with clean water and wipe it with a damp sponge.
- Return the filter to its position.
After cleaning the drainage areas and the screen, the water at the bottom of the dishwasher should disappear. If water is still left, your supply line may have a clog.
Use the procedure below to unclog it.
- Put a container under the supply line to collect falling water.
- Detach the plumbing line that connects to the main drain, letting water collect in the container beneath.
- Insert a drain snake through the pipe to unclog it.
- Connect back your plumbing line to the main drain.
- Run an empty cycle to see if the water flows as expected.
You may also need to clean the drain line. To do so, follow the steps below.
- Put 1/2 cup of baking soda into a container.
- Add 1/2 cup of water into the container and stir to form a paste.
- Find the drain line; found at the rear side of the dishwasher beneath the filter screen.
- Pour your paste into the drain line and add 1/2 cup vinegar.
- Leave it for about 15 minutes before pouring hot water into the drain line.
- Straighten your drain hose, especially if it has kinks.
After running all fixes listed above, try running a complete dishwasher cycle. Power on your appliance and set it to complete the cycle. After the cycle completes, open the appliance doors and check if there is water at the bottom of the dishwasher.
There shouldn’t be water this time, though a cup or two of standing water is OK. If you discover an abnormal amount of standing water, have a professional check and fix your dishwasher.
Dishwasher Filling Up With Water From Sink
The following reasons may cause your dishwasher to fill up with water from the sink.
- Dishwasher drain issues
- Clogged kitchen drain
- Garbage disposal issues
Dishwasher Drain Issues
Dishwasher drain issues may cause your dishwasher to fill up with water from the sink. Common dishwasher issues include improper hose installation and clogged drain lines.
To troubleshoot it, reinstall the hose correctly and unclog the drain line.
Clogged Kitchen Drain
Food particles, papers, and other foreign materials may clog your kitchen drain when you dispose of them inappropriately. That causes water from the sink to fill up your dishwasher.
To troubleshoot this issue, remove the P-trap from the sink and dislodge the gunk.
Garbage Disposal Issues
If you flush down foreign items into the garbage disposal chute, it may result in clogging. When that happens, water will back up into the dishwasher.
To address this issue, try unclogging the garbage disposal chute.
Dishwasher Standing Water Under Filter
Your dishwasher is likely to have standing water under the filter. This feature is standard, so you shouldn’t panic.
You’ll notice this water while removing the dishwasher filter for cleaning. Note that this water is normal, but you can never use it for kitchen chores. This water prevents the seals from drying up.
You don’t need to drain this water out. It drains at the beginning of a new cycle, and freshwater will soon replace it.
Smelly Water in the Bottom of the Dishwasher
If there is smelly water in the dishwasher’s bottom, then there might be mold development in your dishwasher. Standing water and closed dishwasher doors promote mold growth, which produces an unpleasant smell.
Food particles and other debris that clog the drain filter and hose can also rot to produce an unpleasant smell.
To address this issue, try the following fixes.
- Clean the Drain Filter
- Clean the Spray Arm
- Clean the Inside of the Dishwasher
- Run Empty Dishwasher Cycles with Vinegar and Baking Soda
How Much Water Should Be in the Bottom of My Dishwasher?
One or two cups left standing at the bottom of the dishwasher is normal. If the standing water exceeds this amount, it is abnormal, and you may need to repair your dishwasher.
Whirlpool Dishwasher Water in Bottom
It is usual for a Whirlpool dishwasher to have water at the bottom. You’ll notice the standing water when you remove the filter. This water supply ensures the seals’ sustenance.