Written by
Nadia Okafor Appliance Care EditorPublished October 26, 2026
VERIFIED
Error codedn
ApplianceDryer
dn is not a breakdown
When dn appears, the dryer is taking in a firmware download. Samsung lists it for dryers across the board, with no model limits.
While it is showing
Leave the plug in and the power on.
Do not cut the power, because Samsung warns that the dryer could stop working and need service.
Be patient: file size and connection speed set how long the download takes.
What follows
After the software finishes installing, the dryer restarts without help. A dn that is still on the display a full day later is the point at which Samsung says to request service.
Codes that are easy to confuse
CL: Child Lock, also a display that is not a fault.
dC and dE: door readings with a similar two-character look.
If dn has stayed up beyond 24 hours, phone (415) 969-6153 and ask about Samsung dryer repair for San Francisco and the surrounding Bay Area. It speeds things up to have the model number and an estimate of how long the code has been shown.
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
The dryer is downloading firmware, and the process must not be interrupted.
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.
You submit a request with your appliance model and symptom, we confirm an appointment window, and a technician performs an on-site diagnosis. You then receive a clear estimate and decide whether to proceed before any repair begins.
Yes. We provide an upfront estimate after diagnosis. No parts are ordered or installed until you approve the work, so there are no surprise charges.
Replacement parts are selected for the exact model and confirmed with you before ordering or installation.
Service areas are listed on the Locations page. Contact us with your ZIP code to confirm current coverage for your address.
Ready to get your Samsung appliance working again?
Book a repair online or call us — clear estimates and approval before any repair work begins.
