Step-by-Step DIY Fix Guide
- SAFETY: Disconnect power to the dishwasher at the circuit breaker.
- Reset by restoring power, waiting 30 seconds, then running a short rinse cycle.
- If 3C returns immediately, call Samsung Support at 1-800-726-7864.
If the code comes back
- 3C appears — any recurrence after a single power reset requires professional service
- Dishwasher is silent during the wash cycle with no water circulation sounds
What This Error Means
Error 3C on your Samsung dishwasher means: The dishwasher's wash pump has failed or is not operating within normal parameters. The pump is responsible for circulating water through the spray arms during the wash cycle. When 3C appears, the pump cannot move water and the wash cycle stops. The dishwasher's self-diagnostic system has flagged this condition and may have paused the current cycle.
The most frequent cause is wash pump motor failure — pump winding has burned out or seized. Work through the causes and steps below before calling a technician.
Samsung's official guidance classifies 3C as a technician-only fault. A 60-second power reset is the only DIY step. If the code returns, contact Samsung Support at 1-800-726-7864.
Communication and pump faults require professional diagnosis. A 60-second power reset resolves transient faults caused by power surges or brief interruptions. If the code returns after a reset, a physical component has failed and needs professional replacement.
Most Likely Cause by Symptom
The Samsung dishwasher may stop, pause, or refuse to complete the cycle normally.
Likely cause: Wash pump motor failure — pump winding has burned out or seized
Check first: SAFETY: Disconnect power to the dishwasher at the circuit breaker.
Common Causes
- Wash pump motor failure — pump winding has burned out or seized
- Foreign object lodged inside the pump impeller preventing rotation
- Pump capacitor failed — motor cannot start
- Wiring fault between the pump motor and main control board
What Not to Do
- Do not run the dishwasher repeatedly when 3C is active — operating the dishwasher with a failed pump causes overheating
- Do not attempt to access the pump yourself unless you have appliance repair experience — the pump is located under the tub and requires full disassembly
Model and Display Variation Notes
Model-family notes
- Samsung dishwasher display wording and code formats can vary by series.
- If your model behaves differently, check the owner manual before trying any deeper maintenance step.
Display and panel differences
- Panel wording can vary by series, so confirm the exact code pattern before buying parts.
Parts, Tools and Service Options
Service option
Samsung service visit if the warning returns after the basic checks are complete.
Manual and model check
Check your exact model and manual before ordering any Samsung dishwasher parts.
Common parts
- Wash pump motor assembly ($60–$150)
- Pump impeller if foreign object has damaged the impeller ($20–$50)
- Wiring harness section if wiring fault is confirmed ($25–$60)
This section stays service-first because the page points more strongly toward support or professional repair than a routine parts purchase.
When Not to Keep Troubleshooting
3C appears — any recurrence after a single power reset requires professional service
- Dishwasher is silent during the wash cycle with no water circulation sounds
How to Prevent It Recurring
- Remove large food debris and bones from dishes before loading — hard objects can jam the pump impeller
Related Error Codes
5C
Samsung dishwasher error 5C usually means the machine cannot drain water from the tub at the end of the cycle.
OC
The dishwasher has detected that the water level inside the tub is higher than expected. The water level sensor has measured an overfill condition, and the cycle has been stopped to prevent overflow and potential water damage.
CE
The dishwasher's internal electronic components cannot communicate with each other. A communication breakdown has occurred between the main control board and the display or motor control subsystem, halting the cycle.
Extra notes
- This page is based on Samsung support material and stays conservative where model-specific guidance may vary.
- The goal is to help you identify safe first checks before you move into parts, service, or model-specific manual lookup.
Source and model notes
Last reviewed: 2026-04-08
Based on: Based on Samsung support material and edited into consumer-safe guidance for the exact code family on this page.
View Samsung US Official Support
Model coverage note: Samsung dishwasher code meanings can vary by series, control panel, and model family, so use this page as a safe starting point rather than a replacement for the model-specific manual.
Important: FixThisError is an independent guide, not the manufacturer. Use your model-specific manual when the panel wording or behavior differs.
Always disconnect power before inspecting appliances. If unsure, contact a licensed appliance technician.