Samsung Dryer Error Code DN
Last updated: January 14, 2026 MEDIUM
⚠️ Safety Warning
- Unplug the appliance before attempting any repairs
- Never attempt repairs while the appliance is energized
- If you're unsure, contact a certified Samsung technician
- Keep children and pets away during troubleshooting
🔧 Tools You May Need
- Multimeter
- Screwdriver set
- Work gloves
- Vent brush
- Vacuum
- Flashlight
What Does Error Code DN Mean?
When your Samsung dryer displays DN, it means thermistor failure. Check for lint buildup first, as this is often the root cause.
How to Fix Error Code DN
Step 1: Reset Your Dryer
- Unplug the dryer from the power outlet
- Wait 2-3 minutes for the capacitors to discharge
- Plug the appliance back in
- Check if the error code has cleared
Step 2: Specific Troubleshooting
Do not unplug or shut off power to the dryer while this code is displayed. Doing so may cause the dryer to become inoperable and require service.This code means a download to the dryer's firmware is in progress. Depending on file size and the speed of the connection, the amount of time for the download can vary.The dryer will restart itself when the software is installed.
Diagnostic Checks for Dryer Error DN
| Diagnostic Check | Expected Result | If Failed |
|---|---|---|
| Check exhaust vent for blockage | Strong airflow at exterior vent | Clean entire vent run, remove lint buildup |
| Test thermal fuse with multimeter | Continuity (near 0 ohms) | Replace thermal fuse (do not bypass) |
| Inspect heating element | No visible breaks, element glows red | Replace heating element assembly |
| Check drum rotation | Drum spins freely, belt intact | Replace belt or drum rollers |
| Verify gas igniter (gas models) | Igniter glows, gas ignites within 90 sec | Replace igniter or gas valve coils |
💡 Pro Tips from ErrorCodeHub
Thermal Fuse Tip: If your dryer heats but shuts off early, the thermal fuse is likely blown. It's a $10 part—but find out WHY it blew first (usually a clogged vent).
Frequently Asked Questions
What does Samsung error code DN mean?
When your Samsung dryer displays DN, it means thermistor failure. Check for lint buildup first, as this is often the root cause.
Can I fix error code DN myself?
Many DN errors can be fixed with basic troubleshooting. Start with a reset, then check common causes.
How much does it cost to fix error DN?
Repair costs typically range from $50-$300 depending on the cause.
Should I call a technician for error DN?
If basic troubleshooting doesn't work, or you're uncomfortable with repairs, contact a certified technician.
More Samsung Dryer Error Codes
When to Call a Professional
Consider contacting a certified Samsung technician if:
- The error persists after troubleshooting
- You're not comfortable with DIY repairs
- The repair involves electrical or gas components
- Your appliance is still under warranty
Find a technician: Call Samsung support or search for certified repair services in your area.