Samsung · Washing Machine

nF

Not Filling with Water

Severity

High

Your Samsung Washing Machine stopped working and is showing error nF, which corresponds to a fault called "Not Filling with Water". This is one of the most searched error codes for this appliance — you are not alone, and there is a clear fix.

Owner's Summary

The nF code on Samsung washers means 'Not Filling' — the drum is not getting water. Start with the simplest check: make sure both water taps behind the machine are fully turned on.

Symptoms

Samsung washer display shows nF, machine pauses, water does not enter drum

Common Causes

Water supply valve closed
Low water pressure in the home
Blocked water inlet valve filter screen
Defective water inlet valve

How to Fix

1 Ensure water supply valves are fully open
2 Disconnect hoses and clean the mesh inlet screens
3 Check household water pressure is adequate
4 Replace water inlet valve

Tools You'll Need

Pliers Soft Brush Towels / Bucket

Most of these fixes need only basic hand tools. If your repair requires opening electrical housings or testing live components, a multimeter and basic electrical safety knowledge are essential — when in doubt, call a technician.

Technical Explanation

nF is the same underlying fault as 4E on newer Samsung models — the PCB failed to detect pressure sensor movement during the fill window. Both codes trigger when the water level sensor frequency does not shift within the 4-minute fill timeout.

Is It Safe to Keep Using?

No risk to the appliance. Resolve within a couple of days.

Technician's Pro Tip

nF and 4E are the same fault on different Samsung firmware versions. The diagnosis and repair steps are identical — start with the water supply taps and inlet screen filters before replacing any parts.

Related Codes

E2 — Samsung Washing Machine

Water Supply Error

High

4E — Samsung Washing Machine

No Water Supply Detected

High

5E — Samsung Washing Machine

Drain Error — Water Not Draining

High

Frequently Asked Questions

What does error code nF mean on a Samsung Washing Machine?

Code nF on a Samsung Washing Machine indicates "Not Filling with Water." In practice, the most common trigger is water supply valve closed. Severity is rated high, and typical repair costs range from $0 to $160.

Can I fix nF myself, or do I need a technician?

Many cases of nF can be resolved without a technician. The first step to try: ensure water supply valves are fully open. If that doesn't clear the code, work through the remaining steps in the "How to Fix" section above before assuming a part needs replacing.

Is it safe to keep using my washing machine with code nF showing?

No risk to the appliance. Resolve within a couple of days.

How much does it cost to repair nF on a Samsung Washing Machine?

Repair costs for code nF typically range from $0 to $160. Screen cleaning: $0; Water inlet valve: $40–$160. Costs on the low end usually reflect a DIY fix with no parts required, while the high end reflects a part replacement plus professional labor.

Estimated Repair Cost USD

$0 – $160

Screen cleaning: $0; Water inlet valve: $40–$160