Seeing **DC1** on a Samsung washing machine narrows the problem to **door / door-lock error**. What you do next depends on whether the code is an issue, a normal status/test message, or a model-dependent interpretation. The useful diagnostic value of the code is the subsystem it identifies. A good repair process confirms the symptom, checks the accessible external conditions, and then follows the model-specific circuit only if the display returns. The display variants retained for this lookup are **dC1, DC1**. They are grouped under normalized key **DC1** so spacing, case, and separator differences do not create duplicate repair meanings.
Reviewed by Ethan Mercer · Last reviewed August 17, 2026
Written by
Ethan Mercer Appliance Repair Content SpecialistPublished August 17, 2026Updated August 22, 2026Technically reviewed August 17, 2026
Content status:
Verified
Error codeDC1
ApplianceWasher
Quick answer
Door / door-lock error.
Model compatibility: Samsung can reuse or reformat codes across series and model years, so DC1 may mean something different on another appliance or generation. Confirm this against your model’s documentation and record your full model number before acting.
Plain language
What this code means
Seeing **DC1** on a Samsung washing machine narrows the problem to **door / door-lock error**. What you do next depends on whether the code is an issue, a normal status/test message, or a model-dependent interpretation. The useful diagnostic value of the code is the subsystem it identifies. A good repair process confirms the symptom, checks the accessible external conditions, and then follows the model-specific circuit only if the display returns. The display variants retained for this lookup are **dC1, DC1**. They are grouped under normalized key **DC1** so spacing, case, and separator differences do not create duplicate repair meanings.
Signs
Symptoms you may notice
DC1 can be accompanied by this pattern: the appliance can refuse to start or continue a cycle.
While DC1 is active, a door, lid, divider, or latch may not be recognized as closed or locked.
DC1 can be accompanied by this pattern: the code can return immediately when the appliance reaches a door-safety verify.
On affected Samsung washing machine models, dC1 appears during the washer stage associated with door / door-lock error.
Depending on the exact model, the cycle can pause, stop, retry, drain, or refuse to advance until the condition is cleared.
Why it happens
Possible causes
varies by model/region — cross-region baseline — Door / door-lock error
Before you call
Safe checks you can make
These are simple, non-hazardous checks only. If anything is unclear, stop and contact a technician.
For DC1, start by doing this: open and close the door or lid firmly without forcing it.
As an external check for DC1, remove clothing, racks, cookware, packaging, or debris that can interfere with closure.
For DC1, start by doing this: inspect the visible latch/strike area for obstruction or damage without bypassing the safety interlock.
With DC1 recorded, if water is trapped in a washer or dishwasher, resolve the drain condition before trying to force the door open.
Before opening any service area, record the code and the cycle stage where it appears.
As an external check for DC1, verify owner-accessible water supply, drain hose/filter, load balance, door, detergent, or power only when relevant.
Important safety warning. Disconnect power and stop use for active leakage near electrical parts, smoke, burning smell, or repeated breaker trips. Do not bypass a safety device merely to see whether DC1 disappears.
Get help
When to request repair service
If the owner-accessible checks do not clear DC1, Request service if the door closes normally but the code returns, the latch will not release safely, or diagnosis requires testing the interlock, wiring, or control circuit. The repair should confirm the monitored function and its feedback before any board or component is condemned.
Book your repair
Seeing this code on your Samsung appliance?
Book a specialist visit for a clear estimate and approval before any repair.
Resetting can clear a temporary state, not a persistent issue. If **DC1** comes back, preserve the code and move to the safe checks or model-specific service path.
That depends on the accompanying symptom. A code with no safety hazard may allow a short diagnostic check, but **DC1** should not be ignored if performance is deteriorating or the display keeps returning.
The code alone is not enough to justify a part. **DC1** should narrow testing to the affected function; the final cause still has to be verified on the exact model.
The same-looking code can be reused on another Samsung appliance family or reformatted by region/model year. Match the appliance type and exact model before applying a meaning. This page therefore keeps **Washer DC1** separate from same-looking codes used by other Samsung appliance families.