If a Samsung dishwasher shows **bC3**, the verified Samsung meaning in this research set is **touch-control communication/input error**. Use the code to narrow the diagnosis, then confirm the exact model because code scope can change by product generation or region. 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 **bC3**. Search normalization stores it as **BC3** 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 codeBC3
ApplianceDishwasher
Quick answer
Touch-control communication/input error.
Model compatibility: Samsung can reuse or reformat codes across series and model years, so BC3 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
If a Samsung dishwasher shows **bC3**, the verified Samsung meaning in this research set is **touch-control communication/input error**. Use the code to narrow the diagnosis, then confirm the exact model because code scope can change by product generation or region. 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 **bC3**. Search normalization stores it as **BC3** while preserving the characters a homeowner actually sees.
Signs
Symptoms you may notice
Depending on the exact model, the appliance can lose communication between control boards, display, inverter, or other electronic modules.
A symptom that fits bC3 is that controls can become unresponsive, a feature may stop, or the code may appear after power-up.
One clue that supports the bC3 diagnosis is that intermittent operation can occur if a connection or power condition is unstable.
When the bC3 condition is present, bC3 appears during the dishwasher function associated with touch-control communication/input error.
The bC3 display becomes more meaningful if the cycle may stop, drain, fail to fill/heat, or repeat a stage.
Why it happens
Possible causes
varies by model/region — cross-region baseline — Touch-control communication/input 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.
Before opening any service area, power the appliance off once using the documented method, then restore power and see whether the code reappears.
Before requesting service for bC3, record whether the issue followed an outage, update, move, or service event.
To rule out an accessible cause, do not reseat internal live connectors unless qualified to follow the exact service procedure.
A safe owner-level check is to record the code before resetting.
The next non-invasive check is to verify water supply, drain path/filter, door, detergent/suds, and visible leaks only when relevant.
To rule out an accessible cause, if the code returns after the supported owner checks, request model-specific diagnosis.
Important safety warning. Stop use for active leakage near electrical parts, burning smell, or repeated breaker trips. Do not defeat leak or door-safety switches. For bC3, stop troubleshooting immediately if the symptom crosses into a safety hazard rather than a normal diagnostic condition.
Get help
When to request repair service
For bC3, the service threshold is straightforward: A returning communication/electronic-control code can require harness, connector, board power-supply, firmware, or module testing. 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.
One controlled restart is reasonable after correcting an obvious external issue. A recurring **bC3** display should be treated as diagnostic evidence, not as a reason to keep rebooting the appliance.
Do not keep operating the appliance through a hazardous symptom just to see whether **bC3** clears. If there is heat, water, electrical, gas, or food-safety risk, stop and arrange diagnosis.
No. **bC3** tells you which condition or check the control detected. The same display can result from the named component, its wiring, a connector, a supply/airflow/water condition, or the control that reads it.
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 **Dishwasher bC3** separate from same-looking codes used by other Samsung appliance families.
