Samsung Ovens & Ranges

Error Code C-d1

Door locking information / Door lock failure

Moderate

Address soon - your appliance may not work properly

What This Means

Door lock motor malfunction; Door lock switch failure; Damaged harness; Main PCB failure

How to Fix

  1. 1

    Disconnect power and open back cover

  2. 2

    Check harness connection with door lock switch and motor

  3. 3

    Measure door lock motor resistance - should be 1750-1950 Ohms at room temperature

  4. 4

    Measure voltage while operating door lock - should be AC 120V

  5. 5

    Check door locking switch operation - open should show infinite resistance, closed should show 0 Ohms

  6. 6

    Verify CNS300 (Pin 3,4) connections on main PCB

  7. 7

    If all checks pass but problem persists, replace micro switch or lock motor

  8. 8

    If motor and switch are fine, replace main PCB

This Error Applies To

Samsung NE63A6111S Series Ovens & Ranges

Service manual exact match: NE63A6111S

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