Step-by-Step DIY Fix Guide
- SAFETY: No electrical hazard.
- Do not unplug or switch off the dryer while 'dn' is displayed.
- Allow up to 30 minutes for the download and installation to complete.
- The dryer will restart automatically when the update is done.
- If 'dn' persists for more than 30 minutes, unplug for 60 seconds, restore power, and check the SmartThings app.
If the code comes back
- dn persists for more than 60 minutes and does not clear after a single power reset
What This Error Means
Error dn on your Samsung dryer means: The dryer is downloading and installing a firmware update over Wi-Fi. This is not a fault — the display shows 'dn' during the update process. The dryer's self-diagnostic system has flagged this condition and may have paused the current cycle.
The most frequent cause is samsung smartthings app pushed a firmware update to the dryer. Work through the causes and steps below before calling a technician.
Error dn is DIY-safe. Follow all steps in sequence — no tools required in most cases.
The dryer will not resume full operation until the condition is resolved. Work through all steps before contacting Samsung Support.
What users usually notice before this code
Samsung dryer warnings like this usually appear after airflow restriction, repeated lint buildup, interrupted heating, or a cycle that stops without returning to normal drying.
Common misdiagnoses
- Assuming the display code proves one exact failed part before the safe first checks are done.
Most Likely Cause by Symptom
The Samsung dryer may stop, pause, or refuse to complete the cycle normally.
Likely cause: Samsung SmartThings app pushed a firmware update to the dryer
Check first: SAFETY: No electrical hazard.
Common Causes
- Samsung SmartThings app pushed a firmware update to the dryer
- Dryer connected to Wi-Fi and automatically received an available update
What Not to Do
- Do not unplug the dryer during a firmware update — a corrupted update can permanently disable the control board
Model and Display Variation Notes
Model-family notes
- Samsung dryer display wording and code formats can vary by series.
- If your model behaves differently, check the owner manual before trying any deeper maintenance step.
Display and panel differences
- Panel wording can vary by series, so confirm the exact code pattern before buying parts.
Parts, Tools and Service Options
Manual and model check
Check your exact model and manual before ordering any Samsung dryer parts.
This section stays model-first because exact manual and parts matching matters more than a generic replacement suggestion here.
When Not to Keep Troubleshooting
dn persists for more than 60 minutes and does not clear after a single power reset
How to Prevent It Recurring
- Connect your Samsung dryer to Wi-Fi via the SmartThings app — firmware updates improve performance and fix known issues automatically
Related Error Codes
AC
The dryer's internal electronic components cannot communicate with each other. A communication breakdown has occurred between the main control board and one or more subsystems.
CL
The child safety lock is engaged. All control panel buttons are disabled and on some models the door is also locked. This is a safety mode, not a fault.
Helpful guides for this problem
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When repeated dryer error codes usually mean it is time to stop DIY troubleshooting
When a dryer warning has moved past sensible first checks and into the territory where more DIY retries stop helping.
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Guide
When to repair vs replace a refrigerator with repeated fault codes
How to think through the repair-versus-replace decision when the same refrigerator warning keeps coming back.
When not to keep pushing DIY troubleshooting
Use the code page for one careful first pass, then stop if the same warning returns or the appliance still cannot get back to normal operation.
Extra notes
- This page is based on Samsung support material and stays conservative where model-specific guidance may vary.
- The goal is to help you identify safe first checks before you move into parts, service, or model-specific manual lookup.
Source and model notes
Last reviewed: 2026-04-08
Based on: Based on Samsung support material and edited into consumer-safe guidance for the exact code family on this page.
View Samsung US Official Support
Model coverage note: Samsung dryer code meanings can vary by series, control panel, and model family, so use this page as a safe starting point rather than a replacement for the model-specific manual.
Important: FixThisError is an independent guide, not the manufacturer. Use your model-specific manual when the panel wording or behavior differs.
Always disconnect power before inspecting appliances. If unsure, contact a licensed appliance technician.