dC Moderate Moderate DIY

Samsung Washer dC / DC — Door Will Not Lock

Samsung Washer · Error code dC

What dC Means

dC (Door Check) means the washer started a cycle but the door is not locked/closed, or the lock could not be confirmed.

Most Likely Fix

Door not closing / lock error during cycle

PartDoor lock assembly (interlock)
Typical cost$30-60
Difficultymoderate
Time45 min

Tools: screwdriver, torx bit

Diagnose first: Verify door fully latches mechanically before electrical diagnosis. Door strike can also wear and need replacement.

Find this part on Amazon →

Symptoms

  • Cycle will not start
  • dC or DC on the display

Common Causes

1
Door not fully latched

Laundry caught in the gasket or a door that did not click shut.

2
Failed door lock

The electronic door lock has failed.

How to Fix It

  1. Firmly close the door, clearing any laundry from the seal.
  2. Power-cycle the washer.
  3. If dC returns, test and replace the door lock assembly.

Parts You May Need

If diagnosis points to a failed part, these are the common replacements. As an Amazon Associate we earn from qualifying purchases.

Common replacement Samsung Washer Door Lock View on Amazon→

Related Repair Guides

Front-Load Washer Door Won't Open — How to Fix It →

More Samsung Washer Codes

3C 3C / 3E — Motor Fault 4C 4C / 4E — Water Supply Error 4C2 4C2 — Hot water connected to cold inlet 4E 4E — Water supply error (older code, same as 4C) 5C 5C / 5E / SC — Will Not Drain 5E 5E — Drain error (older code, same as 5C)

All Samsung codes → All washer codes →

Always unplug an appliance before servicing it. This guide is for informational purposes and is not a substitute for a qualified technician.