The **1dC1** display on a Samsung washing machine points to **door / door-lock error**. Treat it as a diagnostic direction rather than a parts order: operating conditions, wiring, sensors, actuators, and control electronics can overlap. A display code is evidence from the control system, not a component test result. That distinction matters because a connector, supply condition, obstruction, or feedback signal can mimic a failed component. The recorded display form is **1dC1**. Search normalization stores it as **1DC1** while preserving the characters a homeowner actually sees.
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 code1DC1
ApplianceWasher
Quick answer
Door / door-lock error.
Model compatibility: Samsung can reuse or reformat codes across series and model years, so 1DC1 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
The **1dC1** display on a Samsung washing machine points to **door / door-lock error**. Treat it as a diagnostic direction rather than a parts order: operating conditions, wiring, sensors, actuators, and control electronics can overlap. A display code is evidence from the control system, not a component test result. That distinction matters because a connector, supply condition, obstruction, or feedback signal can mimic a failed component. The recorded display form is **1dC1**. Search normalization stores it as **1DC1** while preserving the characters a homeowner actually sees.
Signs
Symptoms you may notice
One clue that supports the 1dC1 diagnosis is that the appliance can refuse to start or continue a cycle.
When the 1dC1 condition is present, a door, lid, divider, or latch can not be recognized as closed or locked.
A symptom that fits 1dC1 is that the code can return immediately when the appliance reaches a door-safety verify.
One clue that supports the 1dC1 diagnosis is that 1dC1 appears during the washer stage associated with door / door-lock error.
On affected Samsung washing machine models, the cycle may 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.
To rule out an accessible cause, open and close the door or lid firmly without forcing it.
A safe owner-level check is to remove clothing, racks, cookware, packaging, or debris that can interfere with closure.
Before requesting service for 1dC1, inspect the visible latch/strike area for obstruction or damage without bypassing the safety interlock.
To rule out an accessible cause, if water is trapped in a washer or dishwasher, resolve the drain condition before trying to force the door open.
With 1dC1 recorded, record the code and the cycle stage where it appears.
Before opening any service area, verify owner-accessible water supply, drain hose/filter, load balance, door, detergent, or power only when relevant.
Important safety warning. When working around a washing machine that shows 1dC1, keep the checks external and non-invasive. Disconnect power and stop use for active leakage near electrical parts, smoke, burning smell, or repeated breaker trips.
Get help
When to request repair service
If the owner-accessible checks do not clear 1dC1, 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.
A single documented power reset can help after an external condition or power event is corrected. If **1dC1** returns at the same stage, repeated resets only erase useful evidence and do not repair the cause.
Continue only if the appliance is otherwise safe and the owner-level checks are appropriate. Stop for leakage near electrical parts, smoke, burning odor, arcing, gas concerns, repeated breaker trips, uncontrolled heating, or unsafe temperatures.
Not automatically. Samsung error codes are diagnostic indicators, not part numbers. Confirm the circuit around **1dC1** before replacing anything.
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 1dC1** separate from same-looking codes used by other Samsung appliance families.