For the Samsung Dishwasher families covered by the source set, **AC** means **communication error**. The first useful step is to preserve the exact characters and model number before power cycling the appliance. Samsung appliances monitor whether a function reaches an expected state within a certain sequence. When that check fails, the control can store or display a code even though the root cause may sit elsewhere in the same circuit. The recorded display form is **AC**. Search normalization stores it as **AC** while preserving the characters a homeowner actually sees.
Content status: Verified
Communication error.
Model compatibility: Samsung can reuse or reformat codes across series and model years, so AC may mean something different on another appliance or generation. Confirm this against your model’s documentation and record your full model number before acting.
For the Samsung Dishwasher families covered by the source set, **AC** means **communication error**. The first useful step is to preserve the exact characters and model number before power cycling the appliance. Samsung appliances monitor whether a function reaches an expected state within a certain sequence. When that check fails, the control can store or display a code even though the root cause may sit elsewhere in the same circuit. The recorded display form is **AC**. Search normalization stores it as **AC** while preserving the characters a homeowner actually sees.
These are simple, non-hazardous checks only. If anything is unclear, stop and contact a technician.
Important safety warning. Safety takes priority over clearing AC. Stop use for active leakage near electrical parts, burning smell, or repeated breaker trips. Do not defeat leak or door-safety switches.
If the owner-accessible checks do not clear AC, A returning communication/electronic-control code can require harness, connector, board power-supply, firmware, or module testing. The repair should confirm the monitored function and its feedback before any board or component is condemned.
Book your repair
Book a specialist visit for a clear estimate and approval before any repair.
We diagnose Samsung dishwasher drainage, leak detection, drying, filling and cycle problems.
Communication error.
Resetting can clear a temporary state, not a persistent issue. If **AC** 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 **AC** should not be ignored if performance is deteriorating or the display keeps returning.
No. **AC** 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 AC** separate from same-looking codes used by other Samsung appliance families.
Book your repair
Tell us the symptom, appliance and any code you see. We’ll use those details to start with a focused diagnostic path.
Share a few details and we’ll confirm an appointment. Prefer to talk? Call us and we’ll help right away.
