Samsung Ovens & Ranges2017–present

Error Code C-d1

Door lock mechanism positioned incorrectly or not functioning

Critical

Stop using immediately - risk of damage or safety issue

Also displayed as: C-d1

What This Means

Door lock switch improperly connected; Door lock motor malfunction; Incorrect door lock motor resistance; Insufficient voltage to door lock motor; Door locking switch failure

What actually causes this:

Motor failure, loose connections, misaligned latch body, or worn door lock mechanism

First Thing to Check

Disconnect power and check all connections to door lock motor and switch

Parts Involved

Door lock motorDoor lock switchMicro switchMotor harness

How to Fix

  1. 1

    Disconnect power

  2. 2

    Check harness connection to door lock switch and motor

  3. 3

    Measure door lock motor resistance (should be 1600-2200Ω at room temperature)

  4. 4

    Measure voltage at door lock motor terminals (should be AC 120V)

  5. 5

    Check whether door locking switch is working normally

This Error Applies To

Samsung DOC30M977D Series Ovens & Ranges (2017) (2017–present)

Service manual exact match: NQ70M7770DGService manual exact match: DOC30M977DS

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