What to check first
Can I keep using it?
Do not keep using the appliance while this warning is active.
Do not keep running the appliance when water is visible, a leak warning is active, or water could reach wiring or controls.
- Safe next step
- Stop the cycle if safe, turn off water when appropriate, protect the floor, and avoid repeated resets until the leak source is understood.
- Stop when
- Water is near wiring, cabinetry is getting wet, the leak returns, or the source is not safely visible.
Do not keep using the appliance if the code points to voltage, wiring, control power, burning smell, smoke, or a possible miswired supply.
- Safe next step
- Use only safe owner-level power checks, then involve a qualified technician or electrician when the source points to wiring or supply voltage.
- Stop when
- Breakers trip, lights dim, the appliance smells hot, wiring may be miswired, or the warning returns after a safe reset.
Safety boundaries
Safe first
- Match the exact brand, appliance type, and displayed code first.
- Use the model manual as the final authority for access steps.
- Stop and address visible water before retrying the appliance.
- Disconnect power before any service-access step.
- Turn off water before disconnecting any hose.
Do not do this
- Do not keep running the appliance while this code is active.
- Do not disconnect inlet hoses until the water supply is off.
- Do not bypass locks, float switches, leak sensors, or other safety systems.
Common causes include
- Water supply valve not fully open
- Water supply interruption
- Blocked or restricted inlet hose
Basic checks
- Confirm the dishwasher water supply valve is fully open.
- Check for a visible kink or blockage in the inlet hose.
- Confirm household water service is not interrupted.
- Confirm the supply valve is fully open; if flow still seems weak, stop before removing hoses or screens.
- Inspect visible inlet hoses for kinks or freezing; if routing is restricted, correct it before retrying.
- Watch the next fill attempt from nearby; if little or no water enters, pause the cycle and stop retries.
Reset or retry steps
- Retry only after water supply is restored and hose connections are dry.
When to call a technician
- Call Samsung service if the code continues after water-supply checks.
- Call service for suspected inlet valve or sensor faults.
Before approving a paid visit, check warranty status and reviewquestions to ask before repair.
FAQ
What does Samsung Dishwasher code 4C usually mean?
Samsung documents 4C as a warning that the dishwasher is not receiving enough water. Model context matters: Some Samsung dishwashers display 4E instead of 4C.
Can I keep using the dishwasher with code 4C?
Do not keep using the appliance until the visible issue has been checked and the relevant safety warnings have been addressed. Turn off water before hose work.
When should I call a technician for Samsung 4C?
Call Samsung service if the code continues after water-supply checks. A qualified technician may check Inlet hose, Water inlet valve, and Flow sensor against the model's service information before treating any part as failed.