Washer-dryer combo will not spin and shows DC or dC on the display. Door may unlock and relock repeatedly.

Safety first: Wait for the drum to stop before opening the door. Unplug the unit before inspecting the door lock.

Steps to resolve:

• Rearrange the load: Open the door, redistribute clothes evenly, and remove any oversized single items that may cause imbalance.
• Check door closure: Ensure no clothing is trapped between the door and gasket. Close the door firmly until you hear a click.
• Inspect door lock: If DC persists, remove the front panel or door seal clamp (depending on model) to access the door lock assembly. Check that the wiring connector is secure and that the lock is firmly mounted.
• Test cycle: Reassemble and run a spin cycle to confirm the error is cleared.

When to stop: If the door does not lock at all or the DC error appears immediately, the door lock assembly may be defective and should be replaced with a Samsung-compatible part.