For the Samsung Washer families covered by the source set, **BC** means **model/region dependent: mems / vibration sensor error; motor-start triac / motor-start failure**. The first useful step is to preserve the exact characters and model number before power cycling the appliance. Samsung uses overlapping code conventions across model years and regions. This page keeps the appliance context attached to the code so a same-looking string from another product family is not misapplied. The recorded display form is **BC**. Search normalization stores it as **BC** while preserving the characters a homeowner actually sees.
Model compatibility: Samsung can reuse or reformat codes across series and model years, so BC 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
For the Samsung Washer families covered by the source set, **BC** means **model/region dependent: mems / vibration sensor error; motor-start triac / motor-start failure**. The first useful step is to preserve the exact characters and model number before power cycling the appliance. Samsung uses overlapping code conventions across model years and regions. This page keeps the appliance context attached to the code so a same-looking string from another product family is not misapplied. The recorded display form is **BC**. Search normalization stores it as **BC** while preserving the characters a homeowner actually sees.
Signs
Symptoms you may notice
A symptom that fits BC is that the control is not receiving an expected sensor signal or the signal is outside its accepted range.
When the BC condition is present, the appliance can stop a feature, limit operation, or repeat the code during the same stage.
BC can be accompanied by this pattern: the affected function can behave intermittently if the signal or connection is unstable.
The BC display becomes more meaningful if bC appears during the washer stage associated with mems / vibration sensor error.
BC can be accompanied by this pattern: the cycle may pause, stop, retry, drain, or refuse to advance until the condition is cleared.
Why it happens
Possible causes
see exact model manual — some US models — MEMS / vibration sensor error
see exact model manual — some RU/legacy models — Motor-start triac / motor-start failure
Before you call
Safe checks you can make
These are simple, non-hazardous checks only. If anything is unclear, stop and contact a technician.
Before requesting service for BC, photograph the code and note the exact operating stage when it appears.
A safe owner-level check is to check only user-accessible conditions that can physically affect the monitored function.
For BC, start by doing this: avoid replacing a sensor solely from the display; wiring, connectors, supply conditions, and the control can create the same result.
The next non-invasive check is to record the code and the cycle stage where it appears.
For BC, start by doing this: check owner-accessible water supply, drain hose/filter, load balance, door, detergent, or power only when relevant.
For BC, start by doing this: power-cycle once only where Samsung's guidance recommends it; if the same code returns, move to model-specific diagnosis.
Important safety warning. Safety takes priority over clearing BC. 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
For BC, the service threshold is straightforward: If the code returns, model-specific sensor, harness, connector, and control-board testing is appropriate. Bring the exact model number and a photo of the display so the diagnosis stays tied to the documented Samsung code.
Book your repair
Seeing this code on your Samsung appliance?
Book a specialist visit for a clear estimate and approval before any repair.
Model/region dependent: MEMS / vibration sensor error; Motor-start triac / motor-start failure. Check the model-specific interpretation section below because Samsung publishes more than one verified meaning for this appliance+code key.
Resetting can clear a temporary state, not a persistent issue. If **BC** 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 **BC** should not be ignored if performance is deteriorating or the display keeps returning.
Not automatically. Samsung error codes are diagnostic indicators, not part numbers. Confirm the circuit around **BC** before replacing anything.
Official Samsung support itself assigns different meanings to this code in different model/region contexts, so the exact model number matters. This page therefore keeps **Washer BC** separate from same-looking codes used by other Samsung appliance families.
