Samsung washing machine DC error code
What DC means on a Samsung washing machine
Door lock or door circuit fault, door not closing or locking.
Meaning checked by NAC's engineers, 9 November 2026.
What our engineers say
On a Samsung washing machine, the DC code means the machine has found a fault with the door lock or the door circuit, so it cannot tell that the door is closed and locked. You may find the door will not close or lock properly, the door will not open, or the machine will not start a cycle even though the door is shut.
Engineers sometimes find that the door lock itself has failed and no longer locks when the machine asks it to. Now and then the main control board is also at fault and the lock does not get the power it needs. Sometimes the lock has simply worked loose or the machine is not standing level.
An engineer will usually check whether power is reaching the door lock and may fit a test lock to confirm the fault. The usual repair is a new door lock, sometimes with a new control board, or tightening the lock and levelling the machine. Parts may need to be ordered and fitted on a return visit.
Written by our engineers from NAC's own jobs.
Faults this code turns up with
What our engineers found and fixed for each, from NAC's own repair records.
What we fixed. We'll add what our engineers found, the parts they fitted and what customers typically paid once enough of these repairs are confirmed. How we work out our figures.
Before you check anything yourself
- Switch the washing machine off and unplug it, or turn it off at the isolator switch, before you touch anything. Our guide to safely isolating an appliance walks you through it.
- An error code tells you where to look, not that it's safe to take the washing machine apart. Don't remove panels or covers to get at the parts it points to: that's an engineer's job.
- If it involves the mains supply, sealed parts, or you're not confident at any point, stop and book a qualified engineer rather than risk injury or further damage.
Rather leave it to us?
- Fixed-price quote before any work starts
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