Quick answer
First, ensure the dishwasher is empty and unplugged. Check the drain filter and drain hose for clogs. If the issue persists, inspect the drain pump and motor. Always prioritize safety by turning off the power and water supply before starting any repairs.
Confirm the symptom
- Water remains in the bottom of the dishwasher after a cycle.
- Dishes are not coming out clean.
- Dishwasher makes unusual noises during the drain cycle.
- Dishwasher displays an error code related to draining.
- Water leaks from the dishwasher onto the floor.
Tools and prep
- Screwdriver (Phillips and flathead)
- Pliers
- Bucket
- Towel
- Flashlight
- Gloves
- Turn off the power to the dishwasher at the circuit breaker.
- Turn off the water supply to the dishwasher.
- Place a towel and bucket under the dishwasher to catch any water.
Step-by-step troubleshooting
- Check the Drain FilterDo: Locate the drain filter at the back of the dishwasher's bottom interior. Remove it by twisting counterclockwise.Observe: Look for food particles, debris, or other blockages.Means: If the filter is clogged, clean it thoroughly with warm, soapy water.Next: Reassemble and test the dishwasher.
- Inspect the Drain HoseDo: Access the drain hose, usually located under the sink or behind the dishwasher.Observe: Check for kinks, clogs, or damage.Means: Straighten any kinks and clear any clogs. Replace the hose if it's damaged.Next: Reconnect the hose and test the dishwasher.
- Examine the Air GapDo: Locate the air gap on the kitchen counter or sink.Observe: Check for clogs or blockages.Means: Clear any debris and ensure water flows freely.Next: Test the dishwasher.
- Check the Drain Pump and MotorDo: Access the drain pump and motor, usually located at the bottom of the dishwasher.Observe: Listen for unusual noises and check for blockages.Means: Clear any blockages and test the motor for proper operation.Next: If the motor is faulty, replace it.
- Inspect the Check ValveDo: Locate the check valve, usually near the drain pump.Observe: Check for proper operation and ensure it's not stuck open.Means: Replace the check valve if it's faulty.Next: Test the dishwasher.
- Check the Float SwitchDo: Locate the float switch inside the dishwasher, usually at the bottom.Observe: Ensure it moves freely and is not stuck.Means: Replace the float switch if it's faulty.Next: Test the dishwasher.
Common causes
| Cause | Likelihood | Difficulty | Part often needed |
|---|---|---|---|
| Clogged Drain Filter Food particles and debris can block the filter, preventing proper draining. | Common | Easy | None |
| Kinked or Clogged Drain Hose The drain hose can become kinked or clogged, restricting water flow. | Common | Easy–Medium | New drain hose (if damaged) |
| Clogged Air Gap The air gap can become clogged, preventing water from draining properly. | Sometimes | Easy | None |
| Faulty Drain Pump The drain pump may fail or become clogged, preventing water from being pumped out. | Sometimes | Medium | Drain pump |
| Faulty Check Valve The check valve may fail, allowing water to flow back into the dishwasher. | Rare | Medium | Check valve |
| Faulty Float Switch The float switch may become stuck or fail, preventing the dishwasher from draining. | Rare | Medium | Float switch |
Parts matching
If you need to replace any parts, ensure they are compatible with your dishwasher model. Always turn off the power and water supply before replacing parts.
- Drain filter
- Drain hose
- Air gap
- Drain pump
- Check valve
- Float switch
Keep your dishwasher manual handy for model-specific instructions and part numbers.
When to call a professional
- If the dishwasher is still under warranty.
- If you're not comfortable performing the repairs yourself.
- If the dishwasher is leaking water onto the floor.
- If the issue persists after trying the troubleshooting steps.
- If you encounter any electrical issues.
FAQ
Why is there water in the bottom of my dishwasher?
Water in the bottom of your dishwasher is often due to a clogged drain filter, kinked drain hose, or a faulty drain pump. Follow the troubleshooting steps to identify and fix the issue.
Can I run the dishwasher with water in the bottom?
It's not recommended to run the dishwasher with water in the bottom, as it can cause further issues and may not clean the dishes properly.
How do I clean the drain filter?
Remove the drain filter by twisting it counterclockwise, then clean it thoroughly with warm, soapy water. Reassemble and test the dishwasher.
What if the drain hose is damaged?
If the drain hose is damaged, it needs to be replaced. Purchase a compatible hose and follow the manufacturer's instructions for replacement.