Quick answer
If your Samsung dishwasher pump won't stop running, first unplug the unit to reset it. Check for a clogged filter or trapped debris in the pump. If the issue persists, the pump motor or control board may need replacement.
Confirm the symptom
- Dishwasher pump motor is running continuously even after cycle ends
- Pump makes loud humming noise without stopping
- Water drains but pump keeps running
- Dishwasher does not complete full cycle
Tools and prep
- Screwdriver set
- Flashlight
- Plastic putty knife
- Work gloves
- Turn off power at circuit breaker
- Shut off water supply to dishwasher
Step-by-step troubleshooting
- Unplug and ResetDo: Unplug the dishwasher for 1 minute to reset the system.Observe: Pump stops running after plugging back in.Means: Temporary electrical glitch resolved.Next: If pump resumes, proceed to next step.
- Check FilterDo: Remove and clean the filter under the bottom rack.Observe: Filter is clogged with food particles or debris.Means: Clogged filter can cause pump issues.Next: Clean filter thoroughly and reinstall.
- Inspect Pump AreaDo: Locate the pump housing and look for trapped objects or blockages.Observe: Foreign objects or debris in the pump.Means: Obstruction is causing pump to run continuously.Next: Remove debris carefully with gloves.
- Test Water Inlet ValveDo: Check the inlet valve for proper operation.Observe: Valve is stuck open or leaking.Means: Faulty valve can cause pump to run.Next: Replace inlet valve if faulty.
- Check Control BoardDo: Inspect the control board for signs of damage or burn marks.Observe: Burned components or corrosion on the board.Means: Control board may be malfunctioning.Next: Consider replacing the control board.
- Test Pump MotorDo: Use a multimeter to test the pump motor for continuity.Observe: No continuity or resistance outside normal range.Means: Pump motor is likely faulty.Next: Replace the pump motor.
Common causes
| Cause | Likelihood | Difficulty | Part often needed |
|---|---|---|---|
| Clogged Filter Debris can restrict water flow and cause pump to overwork. | Common | Easy | Filter |
| Trapped Debris in Pump Objects in the pump housing prevent proper operation. | Common | Easy–Medium | None |
| Faulty Water Inlet Valve A stuck or leaking valve can cause continuous pump operation. | Sometimes | Medium | Water Inlet Valve |
| Malfunctioning Control Board Electrical issues on the board can send incorrect signals to the pump. | Sometimes | Hard | Control Board |
| Failed Pump Motor A burned-out motor can cause the pump to run continuously. | Rare | Hard | Pump Motor |
| Faulty Door Switch A bad door switch may prevent the dishwasher from completing cycles. | Rare | Medium | Door Switch |
Parts matching
Common parts needed for Samsung dishwasher pump issues:
- Filter - Easy to clean and replace
- Water Inlet Valve - Medium difficulty to install
- Control Board - Requires technical knowledge
- Pump Motor - Hard to replace without experience
Purchase OEM parts for best compatibility with your Samsung model.
When to call a professional
- Pump continues to run after all troubleshooting steps
- You're unable to locate or access internal components
- Electrical testing shows complex issues
- You're not comfortable working with electrical systems
- Error codes persist after resets and part replacements
FAQ
How do I know if my dishwasher pump is bad?
A bad pump may run continuously, make loud noises, or fail to drain water properly. Testing with a multimeter can confirm motor failure.
Can a clogged filter cause the pump to run non-stop?
Yes, a clogged filter can restrict water flow and cause the pump to overwork, leading to continuous operation.
Is it safe to unplug my dishwasher to reset it?
Yes, unplugging the dishwasher is safe and can reset temporary electrical issues. Always ensure the power is off before inspecting components.
How often should I clean my dishwasher filter?
Clean the filter every 1–2 months to prevent clogs and maintain optimal performance.