Samsung Washer Error Code ddC: Meaning & How to Fix It

By the ErrorCodePro Editorial Team · Last reviewed October 20, 2026

Samsung washer error code ddC means: The Add Door is not detected as closed and locked. [1] Keep using it? Not until the cause is fixed. Start with the owner checks below, beginning with: check the add door.

Quick facts

Code	ddC
Also shown as	dC3
Brand / appliance	Samsung washer
System	Door / lock
Official meaning	The Add Door is not detected as closed and locked. [1]
Keep using it?	Not until the cause is fixed
DIY-safe?	Owner checks only (listed below)
Support	Samsung Support Center (samsung.com/us/support)

On this page: Meaning · Steps · Parts · When to call a technician · Related codes · FAQ

What error code ddC means on a Samsung washer

The Add Door is not detected as closed and locked. [1]

This is a door / lock code. Codes and wording can vary by model, so check your owner's manual for your model number.

How to fix Samsung washer error code ddC (safe owner checks)

Safety first: disconnect power before you remove any panel or reach into the sump or drum. Do not touch wiring, the control board or the motor. If you see water near electrical parts, stop and call a technician. These steps are based on Samsung's published guidance [1], rewritten for clarity.

Check the Add Door. Make sure its latch is secure, nothing is caught, and it is closed properly.

Parts that may be involved

Exact parts depend on your model number. This page lists part types only, never part numbers.

No specific part is implied by the manufacturer's guidance for this code.

When to call a technician

The Add Door or latch is damaged
Anything involving wiring, the control board, the motor or the water valve electrics
The appliance is under warranty: contact Samsung Support Center (samsung.com/us/support) first

Frequently asked questions

What does error code ddC mean on a Samsung washer?

Samsung lists ddC as follows: The Add Door is not detected as closed and locked.

Is it safe to keep using the washer with ddC?

Not until the cause is fixed.

Can I fix Samsung washer error ddC myself?

Only with the owner checks on this page, starting with: check the add door. If it persists, call a technician or Samsung Support Center (samsung.com/us/support).

Is dC3 the same as ddC?

Yes. Samsung's documentation lists dC3 with the same meaning as ddC; the display format depends on the model.

Sources

https://www.samsung.com/us/support/troubleshoot/TSG10000997/ (official)

Last reviewed: October 20, 2026. ErrorCodePro is not affiliated with Samsung.