Samsung dryer dn: A firmware download is in progress

Documentation checkedBy ErrHiveUpdated October 28, 2026

THE SHORT ANSWER

A firmware download is in progress.

dn indicates an active dryer software download. Keep power connected until it finishes.

First safe check

Check whether the dryer recently began a SmartThings update.

Applies to

Samsung dryer families covered by the cited US guidance. Match the full model number and exact display; this is not an exact-model compatibility claim.

Before you start

Do not bypass the door switch, run with disconnected exhaust, or open electrical or gas components. Stop for smoke, scorching, or a gas odor.

Go to safe checks

WHAT YOU MAY NOTICE

Symptoms to record

The dryer displays dn.

WORK THROUGH THE BASICS

Safe troubleshooting checks

0 of 2 checked

Use the checkboxes to keep track as you read. Stop at any warning or step that does not match your appliance.

Leave the dryer powered
Do not unplug it or interrupt the breaker while dn is displayed.
What to note
The update is allowed to finish and the dryer restarts itself.
Escalate a stalled download
If dn remains after 24 hours, contact Samsung instead of attempting repeated resets.
What to note
Support can assess why the update has stalled.

THE DETAILS MATTER

Scope & troubleshooting notes

How to interpret this result

A download can take longer on a slow connection. The normal reset procedure is deliberately excluded here because interrupting an update can leave the appliance unusable.

YOUR NEXT DECISION

When to stop and get help

Contact Samsung if dn remains after 24 hours; do not interrupt an active download as a troubleshooting shortcut.

Record what you see

Keep the full model number, exact displayed code, and your observations together for the next conversation.

Use the right support

Contact the manufacturer or a qualified appliance technician when the guide calls for service.

Samsung support

THE EVIDENCE

Sources & verification

Our explanations are editorial summaries of the documentation below. They do not replace the instructions for your exact appliance.

Samsung dryer error codes
Samsung US · Manufacturer support · Checked Oct 28, 2026
Heating errors; temperature errors; voltage errors — Samsung US dryers; codes vary by model

ErrHive is an independent information resource, not an authorized representative of Samsung. Follow your appliance’s manual. Hazardous repairs belong with qualified professionals. Read our safety policy.