Written by
Adrian Soto Appliance Repair Content SpecialistPublished September 5, 2026Updated October 20, 2026
Error codedn
ApplianceDryer
Quick answer
dn on a Samsung dryer means a firmware download is running. Leave the power on and let the dryer restart itself.
Model compatibility: Samsung reuses codes across series and model years, so dn may mean something different on another appliance or generation. Confirm this against your model’s documentation and record your full model number before acting.
Plain language
What this code means
A firmware download to the dryer is in progress.
Seeing dn on a Samsung dryer does not mean something broke. Samsung says the code appears while a download to the dryer’s firmware is in progress, and it is listed for Samsung dryers generally.
What to do while dn is on screen
Do not unplug the dryer or shut off its power. Samsung warns that doing so may leave the dryer inoperable and in need of service. How long the download takes depends on the file size and the speed of the connection, so it can vary.
When the software has been installed, the dryer restarts itself.
When dn will not go away
If dn is still displayed after 24 hours, Samsung tells owners to request service.
Related codes
CL – Child Lock, another display that is not a fault.
dC and dE – door errors that are easy to mix up with other short two-character codes.
Samsung dryer repair in Los Angeles
If dn has stayed on the display past the 24 hours Samsung mentions, call (310) 896-4231 about Samsung dryer service in Los Angeles. You can also see our dryer repair page. Please have the model number ready and tell us how long the code has been showing.
Important safety warning. Do not attempt repairs involving electrical components, gas, water lines, refrigerant or sealed systems. Unplug the appliance if it is safe to reach the outlet, and leave internal diagnostics to a qualified technician.
Seeing this code on your Samsung appliance?
Book a specialist visit for a clear estimate and approval before any repair.
