Quick answer
If your washer won't pump out water, first check the pump filter for clogs and ensure the drain hose is clear. If these don't work, test the pump motor and check for electrical issues.
Confirm the symptom
- Washer fills with water but doesn't drain
- Water remains in the drum after the cycle ends
- Washer makes a humming noise but no water is pumped out
- Drain hose is kinked or clogged
- Pump filter is clogged with debris
Tools and prep
- Screwdriver
- Adjustable wrench
- Bucket
- Flashlight
- Work gloves
- Turn off the washer's power at the circuit breaker
- Shut off the water supply to the washer
Step-by-step troubleshooting
- Check the Drain HoseDo: Inspect the drain hose for kinks, clogs, or improper placement.Observe: Hose is clear and properly positioned.Means: Drain hose is not the issue.Next: Check the pump filter.
- Check the Pump FilterDo: Locate and remove the pump filter. Clean it thoroughly with water and a brush.Observe: Filter is clean and free of debris.Means: Clogged filter was the issue.Next: Restart the washer and test.
- Inspect the Pump ImpellerDo: Remove the pump cover and check the impeller for blockages or damage.Observe: Impeller spins freely and is undamaged.Means: Pump is functioning properly.Next: Check the pump motor.
- Test the Pump MotorDo: Use a multimeter to test the pump motor for continuity. Check for power supply to the pump.Observe: Motor has continuity and receives power.Means: Pump motor is working.Next: Check the lid switch or water level sensor.
- Check Lid Switch and Water Level SensorDo: Ensure the lid switch is functioning and the water level sensor is not faulty.Observe: Lid switch and sensor are working correctly.Means: Control system is not the issue.Next: Consult a professional if the issue persists.
- Inspect the Drain PumpDo: Check the drain pump for damage or failure. Replace if necessary.Observe: Pump is damaged or not working.Means: Pump needs replacement.Next: Replace the drain pump.
Common causes
| Cause | Likelihood | Difficulty | Part often needed |
|---|---|---|---|
| Clogged Pump Filter Debris and lint can block the filter, preventing water from draining. | Common | Easy | Pump Filter Cleaner |
| Clogged Drain Hose A kink or blockage in the hose can prevent water from exiting the washer. | Common | Easy | Drain Hose |
| Faulty Pump Motor The motor may fail, preventing the pump from operating. | Sometimes | Medium | Drain Pump Motor |
| Damaged Pump Impeller The impeller can break or become clogged, stopping water flow. | Sometimes | Medium | Drain Pump Impeller |
| Faulty Lid Switch or Water Level Sensor These sensors may prevent the pump from activating if they're malfunctioning. | Rare | Medium | Lid Switch or Water Level Sensor |
| Failed Drain Pump The entire pump assembly may fail, requiring replacement. | Sometimes | Hard | Drain Pump |
Parts matching
Common parts needed for a washer that won't pump out water include:
- Drain Pump
- Pump Filter Cleaner
- Drain Hose
- Drain Pump Motor
- Drain Pump Impeller
- Lid Switch
- Water Level Sensor
Always match parts to your washer's make and model for compatibility.
When to call a professional
- The washer still won't pump water after checking all components
- You suspect electrical issues beyond basic testing
- You're unsure about handling electrical components
- The pump motor or impeller is damaged and needs replacement
- The problem persists after replacing parts
FAQ
How often should I clean the pump filter?
Clean the pump filter every 3–6 months to prevent clogs and maintain proper drainage.
Can a clogged drain hose cause the washer to stop mid-cycle?
Yes, a clogged drain hose can cause the washer to pause or stop the cycle to prevent overflow.
What tools do I need to replace a drain pump?
You'll need a screwdriver, adjustable wrench, and a new drain pump compatible with your washer model.
Why is my washer making a humming noise but not draining?
A humming noise often indicates a clogged pump or a faulty pump motor that's not turning.
Can a faulty water level sensor prevent the pump from working?
Yes, if the water level sensor is faulty, it may not signal the pump to start draining.