mypros+
Error code reference

Samsung Range Error Code Cd-2

Door lock is mispositioned.

Samsung codesSamsung range codes

Door lock is mispositioned.

First step from the service manual

Disconnect power. Open the cover back. Check whether harness has been connected with door lock switch and motor. Confirm whether resistance value of door lock motor is correct (normal value should be ~1500 ohms at room temperature). Operate door lock, measure voltage at the plug supplying power to the door lock motor (normal voltage AC 120V). Check whether door locking switch is working normally.

The complete diagnostic procedure includes additional test steps, resistance specifications, wiring diagram references, and component test points.

MyPros+ Max

Get the full diagnostic procedure for Cd-2.

  • Step-by-step tests with expected resistance, voltage, and continuity values
  • Wiring diagram references and connector pinouts from the OEM service manual
  • Verified part numbers when replacement is required
Get the full procedure

$29/month · Cancel anytime · Or $9.95 3-day pass

What Cd-2 means on a Samsung range

The Cd-2 error code on a Samsung range indicates that the door lock mechanism is mispositioned. This fault is associated with the self-clean cycle system, which requires the oven door to lock securely before high-temperature operation can begin or continue. When the control board cannot confirm that the door lock has reached its intended position, it triggers Cd-2 to prevent the cycle from proceeding unsafely. The door lock assembly consists of a motor-driven latch mechanism and a set of switches that signal the control board when the lock is fully engaged or disengaged.

The diagnostic process focuses on three main checkpoints: the wiring harness connections, the door lock motor, and the door lock switch. The motor should measure approximately 1500 ohms of resistance at room temperature. A reading significantly outside this value points to a failed or failing motor. When the motor is powered during a lock operation, it should receive AC 120V at its supply plug. If that voltage is absent, the problem may be upstream in the wiring or control board rather than in the motor itself.

The door lock switch confirms to the control board that the latch has reached its end position. A switch that is out of adjustment, physically damaged, or electrically open will prevent the board from receiving that confirmation signal, resulting in Cd-2 even if the motor and wiring are otherwise functional. Inspecting the harness for loose connectors, damaged pins, or chafed insulation is an important step before condemning any individual component.

Source: manufacturer service documentation.

Common causes of Cd-2

  1. 01

    Disconnected or damaged wiring harness

    Wiring / connection

    The harness connecting the door lock switch and motor can work loose over time or sustain heat damage near the oven cavity. Inspect all connectors at the door lock assembly for loose pins, corrosion, or broken wires before testing components individually.

  2. 02

    Failed door lock motor

    Part replacement

    The door lock motor drives the latch into position, and a resistance reading significantly different from the normal value of approximately 1500 ohms at room temperature indicates the motor winding has failed. A motor that measures open or shorted will not move the latch correctly.

  3. 03

    Faulty door lock switch

    Part replacement

    The door lock switch signals the control board when the latch has reached its locked or unlocked position. If the switch is out of adjustment, physically stuck, or electrically open, the board will not receive confirmation of a successful lock and will display Cd-2.

  4. 04

    No voltage reaching the door lock motor

    Wiring / connection

    If AC 120V is not present at the motor supply plug when a lock operation is commanded, the motor cannot run regardless of its condition. This points to a wiring fault, a blown fuse, or a control board output that is not switching on.

  5. 05

    Mechanical obstruction in the lock assembly

    Wiring / connection

    Grease buildup, food debris, or a physically bent latch component can prevent the motor from driving the lock to its proper end position. Inspecting the latch mechanism for physical obstructions is a quick check that requires no parts.

See the test procedure for each cause

Frequently asked questions about Cd-2

What does Cd-2 mean on a Samsung range?
Cd-2 means the oven's door lock mechanism is mispositioned. The control board monitors the door lock motor and switch during self-clean cycles, and it displays Cd-2 when it cannot confirm the lock has reached the correct position. The fault can originate in the lock motor, the lock switch, or the wiring that connects them to the control board.
Can I fix the Cd-2 error myself?
Some causes of Cd-2, such as a loose harness connector or a mechanical obstruction in the latch, can be corrected without replacing parts. However, accessing the door lock assembly requires disconnecting power and removing the back cover panel, which involves working near high-voltage components. If the motor or switch needs to be replaced, a technician with appliance repair experience is recommended, though a confident DIYer who is comfortable with basic electrical testing can handle the repair as well.
Is it safe to use my Samsung oven while the Cd-2 code is displayed?
The Cd-2 error specifically affects the self-clean cycle and the door lock system. Standard baking and broiling functions may still operate, but you should not attempt to run a self-clean cycle while this fault is active, since the door lock is a safety interlock for that high-temperature mode. Confirm which functions remain accessible on your specific model before using the oven.
Will resetting the oven clear the Cd-2 error?
Disconnecting power for a few minutes may temporarily clear the code if the fault was caused by a transient control board issue, but if the underlying problem with the door lock motor, switch, or wiring is still present, the error will return. A reset alone is not a repair and should be followed by proper diagnosis of the lock assembly.
How much does it cost to repair a Cd-2 error on a Samsung range?
Repair costs depend on which component is at fault. A door lock motor or switch part typically ranges from around $30 to $80. If professional labor is involved, total repair costs including parts generally fall between $100 and $250, depending on local labor rates and the specific parts required. If the control board itself is the source of the missing voltage signal, costs can be higher.

Related Samsung range codes

All Samsung range codes
View all 72 Samsung range codes

78,000+ service manuals · 160,000+ error codes · 55+ brands

Get Started

$29/month · Cancel anytime · Or $9.95 3-day pass