Possible causes:

• Clogged drainpipe or filter: 
  • Debris, such as lint or hair, might be blocking the drainpipe or filter, preventing water from flowing out.
• Kinked or damaged drain hose: 
  • The hose leading from the machine to the drain might be kinked or damaged, restricting water flow.
• Faulty drain pump: 
  • In rare cases, the drain pump itself might be malfunctioning and unable to push the water out.
• Internal drainage component issues: 
  • Less commonly, issues with internal components like valves or sensors could be hindering proper drainage.

Troubleshooting the dn Error Code on Samsung Washing Machine

1. Turn off and unplug the machine: 
   • Safety first!
2. Check the drain filter: 
   • Locate the drain filter (usually near the front of the machine) and unscrew it carefully. 
   • Clean any debris or obstructions you find inside. 
   • Consult your user manual for specific instructions on locating and cleaning the filter.
3. Inspect the drain hose: 
   • Check for any kinks or damage to the hose along its route from the machine to the drain. Straighten any kinks and replace the hose if damaged.
4. Try a drain cycle (if available): 
   • Some models might have a dedicated drain cycle you can try to manually drain the water even if the wash cycle stopped with the dn error. Consult your user manual for instructions on initiating this cycle.
5. If the above steps don't resolve the issue, contact Samsung support: They can help diagnose the problem based on your model and provide specific guidance, potentially suggesting:
   • Advanced troubleshooting procedures for specific components.
   • Checking internal valves or sensors if necessary.
   • Sending a technician if a hardware repair is needed.

Additional tips:

• Avoid overloading the machine, as this can put extra pressure on the drainage system.
• Use the appropriate amount of detergent, as too much can create excessive suds and hinder drainage.
• Don't attempt to tamper with internal components unless you have the necessary expertise. Doing so could worsen the problem or create safety hazards.

Remember, the exact cause and troubleshooting steps might vary depending on your specific Samsung washing machine model. Consulting your user manual or contacting Samsung support can provide the most accurate information and guidance for your situation.

I hope this explanation helps you resolve the drainage issue with your Samsung washing machine!