Samsung Washing machines error code
Washer is not filling correctly
Water is not entering the washer as expected. Samsung also uses 1 4C, nF, and 4E for related filling errors on some models.
Also shown as: 1 4C, nF, 4E
Direct answer
4C at a glance
- Meaning
- Washer is not filling correctly
- Urgency
- Check now
- First safe check
- Open both hot and cold water valves completely.
- Model note
- Samsung groups 4C with related fill codes such as 4E, nF, and 1 4C on some models. 4C2 or 4E2 is a different clue that commonly points to reversed hot and cold supplies.
Confirm the symptom
What usually appears with 4C
- The washer pauses early in the cycle while trying to fill
- Little or no water enters the drum
- One wash temperature works but another does not
- The code appears after installation, moving, or hose work
Likely causes
Why 4C appears
- 01Supply valves are closed
- 02Inlet hose is kinked
- 03Inlet screen is restricted
- 04Drain hose installation is causing siphoning
Observation-led diagnosis
Start with what you can actually see
An error code identifies a system, not a replacement part. Match the observable condition before deciding what to check next.
| What you observe | What it suggests | Safest next move |
|---|---|---|
| Neither hot nor cold water enters | Both supply valves, household flow, or the shared inlet path may be restricted | Owner checkOpen both valves fully and confirm water is available at the home supply. |
| Only hot or only cold cycles fail | The matching valve, hose, or inlet screen may be restricted | Owner checkCheck that side for a closed tap, kink, swapped connection, or model-approved screen cleaning. |
| The code began after the washer was moved or installed | A hose may be pinched or the drain-hose setup may be siphoning water | Owner checkCompare both inlet connections and the drain-hose height and insertion depth with the installation guide. |
| Water enters even when the washer is switched off | The inlet valve may not be closing | Stop and serviceClose both supply valves and arrange service before using the washer again. |
Safe diagnostic path
What to check, in order
- 01
Open both hot and cold water valves completely.
- 02
Check that both inlet hoses are connected correctly and are not kinked.
- 03
Confirm the drain hose is installed at the height and insertion depth in the manual.
- 04
Power the washer off for one minute, then retry.
Know when to stop
Don’t push past this point
Turn off the valves and request service if the washer fills continuously or the code persists after supply checks.
- Do not pry out or damage inlet screens.
- Do not keep running the washer if a hose or connection leaks.
- Do not replace the inlet valve from the code alone.
Primary source
How this page was checked
The code meaning and manufacturer-specific guidance were checked against the linked support material on August 28, 2026. Confirm details against the manual for your exact model before removing panels or parts.
Read Samsung US: washing-machine error codes ↗Common follow-up questions
About Samsung code 4C
What does 4C mean on a Samsung washing machines?
4C means “Washer is not filling correctly.” Water is not entering the washer as expected. Samsung also uses 1 4C, nF, and 4E for related filling errors on some models.
Can I clear 4C by resetting the appliance?
Reset only after the taps, hoses, and drain-hose installation have been checked. If 4C returns, the washer still cannot verify adequate water flow.
Does 4C mean the same thing on every Samsung model?
Samsung groups 4C with related fill codes such as 4E, nF, and 1 4C on some models. 4C2 or 4E2 is a different clue that commonly points to reversed hot and cold supplies.
When should I stop troubleshooting 4C?
Turn off the valves and request service if the washer fills continuously or the code persists after supply checks.