If your Samsung washing machine is not draining water, it means the machine is unable to remove dirty water from the drum after washing or rinsing. This is a very common issue and can usually be traced to blockages, pump failure, hose problems, or control system faults.
When draining fails, clothes remain soaking wet, cycles stop mid-way, and error codes may appear on the display. Understanding the causes will help you fix the problem quickly.
1. Clogged Drain Pump Filter (Most Common Cause)
The drain pump filter collects lint, coins, hair, and debris.
Why it happens
- Accumulation of lint and fabric fibers
- Small objects like coins or buttons stuck inside
- Lack of regular cleaning
Symptoms
- Water remains in drum after cycle
- Gurgling noise during drain
- Slow or partial drainage
Solution
- Turn off and unplug the machine
- Open the filter access panel (usually at bottom front)
- Remove and clean the filter thoroughly
- Check for blocked debris inside pump area
Cleaning this filter solves most drainage issues.
2. Blocked Drain Hose
The drain hose carries wastewater out of the machine.
Why it happens
- Hose bent or twisted behind machine
- Blockage from dirt or detergent residue
- Improper installation height
Symptoms
- Water drains very slowly
- Water backs up into drum
- Error codes related to drainage
Solution
- Inspect hose behind machine
- Straighten any kinks
- Disconnect and flush hose with water
- Ensure correct hose height (not too low or high)
A clear hose is essential for proper drainage.
3. Faulty Drain Pump
The drain pump actively pushes water out of the washer.
Why it happens
- Motor failure
- Electrical issue
- Worn-out pump impeller
Symptoms
- No sound during drain cycle
- Water completely stays inside drum
- Repeated drain errors
Solution
- Listen if pump is working during drain
- Inspect for blockage in pump impeller
- Replace pump if motor has failed
A damaged pump usually requires technician replacement.
4. Drain Hose Blockage in Plumbing Line
Sometimes the issue is not inside the machine.
Why it happens
- Blocked household drain pipe
- Dirt or grease buildup in outlet
- Improper drainage connection
Symptoms
- Water backs up after draining starts
- Slow or partial emptying
- Bad smell from drain pipe
Solution
- Check household drain outlet
- Clean plumbing line if blocked
- Ensure proper pipe connection
External plumbing issues are often overlooked.
5. Incorrect Drain Hose Installation
Improper installation can stop water from flowing out correctly.
Why it happens
- Hose placed too low or too high
- Air lock in drain line
- Poor fitting connection
Symptoms
- Intermittent drainage
- Water remaining in drum
- Strange gurgling noises
Solution
- Install hose according to manual guidelines
- Ensure proper height (typically 60–90 cm)
- Secure hose properly into standpipe
Correct installation ensures smooth water flow.
6. Door Lock or Cycle Interruption Issues
Some Samsung washers will not drain if safety systems detect issues.
Why it happens
- Door not locked properly
- Cycle interruption or pause mode
- Error in control system
Symptoms
- Cycle stops mid-way
- No drain operation starts
- Door lock indicator flashing
Solution
- Close door firmly
- Restart cycle
- Reset machine by unplugging for 10 minutes
Safety systems may block drainage if conditions are unsafe.
7. Faulty Water Level Sensor (Pressure Sensor)
The machine relies on sensors to detect water levels.
Why it happens
- Sensor malfunction
- Blocked air pressure tube
- Wiring issues
Symptoms
- Machine thinks water is already drained
- Drain cycle not activating
- Random error codes
Solution
- Inspect pressure tube for blockage
- Clean or replace sensor connection
- Replace sensor if faulty
This issue often requires technician support.
8. Control Board Malfunction
The electronic control board manages drain cycles.
Why it happens
- Power surges
- Moisture damage
- Internal circuit failure
Symptoms
- Drain cycle never starts
- Random machine behavior
- Multiple system errors
Solution
- Reset machine by unplugging
- Check for error codes
- Replace control board if necessary
Control board failure is less common but serious.
9. Frozen Drain Hose (Cold Conditions)
In cold environments, water can freeze inside hoses.
Why it happens
- Low temperatures
- Poor insulation
- Outdoor installation
Symptoms
- No drainage at all
- Ice inside hose
Solution
- Thaw hose carefully
- Improve insulation
- Maintain warm environment
Frozen hoses block all water flow.
Step-by-Step Troubleshooting Guide
Follow these steps before calling a technician:
- Turn off and unplug machine.
- Check drain filter and clean it.
- Inspect drain hose for bends or blockages.
- Check household drain pipe.
- Restart washing machine.
- Run drain/spin cycle again.
- Listen for pump sound.
- Check error codes.
- Verify hose installation height.
- Call technician if issue persists.
How to Prevent Drain Problems
- Clean drain filter every 1–2 months
- Avoid washing items with coins or debris
- Inspect drain hose regularly
- Do not overload machine
- Maintain proper detergent usage
- Ensure proper installation
- Schedule periodic servicing
Preventive care reduces drainage failures significantly.
When to Call a Technician
Contact an authorized Samsung technician if:
- Pump is not working even after cleaning
- Drain errors continue
- Control board issues are suspected
- Water remains fully inside drum
- Electrical faults are detected
Official support:
https://www.samsung.com/support/
Conclusion
A Samsung washing machine not draining water is usually caused by clogged filters, blocked hoses, faulty drain pumps, or sensor and control issues. In many cases, simple cleaning and inspection can fix the problem quickly.
By maintaining regular cleaning, checking hoses, and ensuring proper usage, you can prevent drainage problems and keep your washing machine running efficiently for years.