Samsung · Washing machines
Samsung Washer 4C Error: Water Supply Checks
THE SHORT ANSWER
The washer is not filling with water correctly.
4C is a water-fill warning. Begin with the supply valves and visible hoses before assuming an internal component failed.
Check that both required supply valves are open.
Disconnect power and shut off water before disconnecting hoses. Avoid touching a plug or appliance while standing in water.
WHAT YOU MAY NOTICE
Symptoms to record
- Filling fails to complete
- Little or no water enters
UNDERSTAND THE POSSIBILITIES
Causes & useful observations
A code identifies a condition. It does not, by itself, confirm which part needs repair.
| Possible cause | What to look for | Safe check / next step |
|---|---|---|
| Restricted supply | Closed valve or pinched hose | Inspect visible plumbing. |
| Wrong connection | Hot and cold lines do not match | Have connections corrected safely. |
| Drain siphoning | Water does not remain in the tub | Compare hose routing with the manual. |
WORK THROUGH THE BASICS
Safe troubleshooting checks
Use the checkboxes to keep track as you read. Stop at any warning or step that does not match your appliance.
Confirm the hot and cold connections are correct and hoses are not crushed.
What to noteBoth required water lines should be available.
Leave the factory drain-hose holder in place. Verify insertion and height using the model manual.
What to noteThe discharge should not be airtight or incorrectly positioned.
After safe corrections, try the normal cycle.
What to noteA persistent warning needs manufacturer support.
THE DETAILS MATTER
Scope & troubleshooting notes
Cold is not a plumbing instruction
Some cold settings still mix in hot water under certain conditions. Do not omit the hot connection unless the model instructions permit it.
YOUR NEXT DECISION
When to stop and get help
If the washer continuously fills, close the water valves and request service.
DOCUMENTED COMPATIBILITY
Verified model relationships
These exact models have a documented relationship to this code. An unlisted model is not automatically compatible.
THE EVIDENCE
Sources & verification
Our explanations are editorial summaries of the documentation below. They do not replace the instructions for your exact appliance.
- Samsung washing machine information and error codes
Samsung US · Manufacturer support · Checked
4C; 5C; SUd; Ub; model-dependent dC — Samsung US washers; model-specific code variants exist
- Water fill issues with Samsung washers
Samsung US · Manufacturer support · Checked
No water; supply hoses; drain installation — Samsung US washing machines