Samsung Range C-d1 — What It Means & How to Fix It
Also shown as Cd1 on some models.
C-d1 is Samsung's door-lock malfunction code. Samsung's fix is a two-step: turn the oven off and restart it; if it continues, switch power off for 30 seconds or more and reconnect.
What this code means
C-d1 is the door-lock malfunction information code: the door lock circuit didn't behave as expected when commanded. Samsung's official page resolves it directly — turn the oven off and restart it, and if the problem continues, switch the power off for 30 seconds or more and then reconnect. Codes that survive that routine point at the latch assembly or the control driving it.
Samsung's official information-code page lists C-d1 as 'door lock malfunctions' with the restart-then-30-second-power-off routine. The model number is on the frame behind the storage drawer or the oven door frame.
Most likely causes
| Cause | How likely | DIY-fixable? |
|---|---|---|
| One-off lock fault after a power event or interrupted cycle | Very common | Yes — restart and power off |
| Oven door not fully closed when the lock engaged | Common | Yes — close firmly |
| Door latch assembly or switch failed | Occasional | No — technician job |
| Control board not driving the latch | Less common | No — technician job |
What you can try yourself
- Turn the oven off and restart it — Samsung's own first step for C-d1.
- If the code continues, switch the power off for 30 seconds or more, then reconnect it.
- Make sure the oven door is fully closed before retrying a lock or self-clean.
- Check nothing blocks the latch opening at the front edge of the cavity.
- A C-d1 that returns after the routine needs a technician to test the latch assembly and its circuit.
When to call a technician
- C-d1 returns immediately after the restart and 30-second power-off.
- The door won't lock or won't unlock when commanded.
- The latch grinds or visibly fails to move during a self-clean attempt.
Typical professional repair cost: No cost if the reset routine clears it; door-latch assembly replacement typically runs $150–$300 including labor.
Frequently asked questions
Why does C-d1 usually clear with a power reset?
Lock circuits can hold a false state after a power dip or an interrupted self-clean. Samsung's own page answers C-d1 with exactly that: restart, then 30 seconds of power off, before any part is suspected.
Can I still bake with C-d1 showing?
Normal bake may work since C-d1 lives in the lock function, but avoid self-clean until it clears — the lock is load-bearing in that mode.
Is the door lock a big repair?
No — the latch assembly is a contained part at the top of the cavity, usually an hour of work. The restart routine is there so you don't pay for it unnecessarily.
Sources checked
Error meanings can vary by model. This guide was checked against the documentation above; use the manual for the model number on your own appliance when it differs.
Related Samsung codes
- Samsung Range C-24 C-24 is Samsung's fast-temperature-rise warning: the cavity heated quicker than expected, most often because the vent on the back of the cooktop is covered.
- Samsung Range C-20 C-20 is Samsung's oven temperature sensor error: the sensor circuit reads open, shorted, or out of range, so the control board can't trust the cavity temperature.
- Samsung Range C-21 C-21 is Samsung's over-temperature code: the oven sensor detected the cavity hotter than the setpoint and shut heating down to protect the unit.
- Samsung Range C-F0 C-F0 is Samsung's communication error between the main control board and the display: the two stopped talking. A restart clears most cases; induction models have an official software-update fix.
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