Samsung Washer Not Filling With Water: Causes and How to Fix It
Updated · from manufacturer service documentation
If a Samsung washer isn't getting water, the service diagnostic checks the hose connections, the faucets, and the water valve, in that order. Front-load Samsung washers flag this with the code nF; top-load models use 4C (see the dedicated 4C page for that code's specifics).
What Causes a Samsung Washer to Not Fill
| Cause | Likelihood | DIY difficulty | Related part |
|---|---|---|---|
| Water supply hose not connected | Most common | Easy — connect hot/cold hose | — |
| Water faucet closed or supply disconnected | Common | Easy — open faucet | — |
| Foreign particles in the valve filter | Common | Easy — clean filter | Water valve |
| Water valve coil failed | Less common | Moderate — check for "Woong" sound, coil resistance | Water valve |
| Wire connection loose, disconnected, or pin deviated | Less common | Moderate — check wiring | Wiring harness |
| Water level (pressure) sensor fault | Less common | Moderate — check pressure hose | Pressure sensor |
How to Fix It, Step by Step
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Check that the water supply hose is connected
Confirm both the hot and cold water hoses are actually connected to the washer.
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Check that the water faucet is open
Confirm the hot and cold water valves at the wall are open and the supply isn't disconnected.
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Check the water valve for debris and listen for the valve operating
Remove any foreign particles from the valve filter. Per Samsung's documentation, you should hear a "Woong" sound when the valve operates normally — if you don't, and the filter is clear, replace the valve.
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Check the wire connection to the valve
Confirm the wire isn't disconnected and that no housing is missing or pin deviated at the connector.
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Check the water level (pressure) sensor
Check the pressure hose for breaks or for being pulled out of position, and replace the pressure sensor if problems remain after that check.
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If everything above checks out, the Main PCB may be at fault
This is a job for a technician.
Which Models This Applies To
Documented for the Samsung front-load WF328AAW series. On this platform, a fill failure is flagged with the diagnostic code nF — the front-load counterpart to the 4C code used on Samsung top-load washers, which has its own dedicated page with water inlet valve resistance specs (0.9–1.1 kΩ).
See also: Samsung washer 4C · Samsung washer not draining.
Frequently Asked Questions
What does the "nF" code mean on a Samsung washer?
On Samsung front-load washers, nF flags a fill problem — the machine isn't getting water the way it should during the fill step.
Is nF the same as the 4C code?
They flag the same type of problem (the washer isn't filling) but appear on different Samsung washer platforms — nF on front-load models, 4C on top-load models.
How do I know if the water valve itself has failed?
Listen for a "Woong" sound when the valve should be operating. If you don't hear it and the valve filter is already clean of debris, the valve needs replacing.
Do I need a technician to fix a fill problem?
Not always — checking hose connections, faucets, and the valve filter for debris are all DIY-checkable. A failed valve coil, damaged wiring, or a pressure sensor fault are moderate-difficulty repairs; a persistent fault after all of those points to the Main PCB.
Based on the Samsung service documentation for the WF328AAW washer series. Last updated: .