On compatible Samsung AddWash models, ddC or dDC indicates that the small Add Door was opened or is not secured as expected.
What ddC / dDC means
On compatible Samsung AddWash models, ddC or dDC indicates that the small Add Door was opened or is not secured as expected.
What you may notice
- The display or status light shows ddC / dDC
- The cycle will not start
- The latch clicks repeatedly
- The door appears closed but is not detected
Most likely causes
- 01Clothing or debris is caught in the opening
- 02The door is not fully seated
- 03Residue is blocking the latch
- 04The hinge or latch is damaged
- 05The lock switch or wiring has failed
Safe checks, in order
Start with the simplest non-invasive check. Stop as soon as the error clears; repeated resets can hide a condition without correcting it.
Remove obstructions
Move clothing, paper, or debris away from the seal, hinge, and latch area.
Inspect the closure
Look for residue, a loose hinge, a cracked hook, or a cover that is not fully seated.
Close normally
Use gentle, even pressure. Do not slam or force the door.
Restart once
Disconnect power briefly, restore it, and test with the appliance empty.
Know where to stop
Never bypass a door switch or operate equipment with a damaged latch. The interlock is a safety device.
When to call a technician or support
Request service for a broken latch, sagging door, damaged switch, or a warning that returns with an unobstructed door.
When you call, have the exact product model, the complete code or light pattern, and when it appeared.
Where this information came from
We use the manufacturer's current published guidance as the starting point, then organize it into a safer, beginner-friendly sequence.
Samsung Support — washing machine error codes Source last checked August 18, 2026. Manufacturer instructions and model manuals take priority over this independent summary.