Samsung Top-load washer Error Code nF: Meaning & How to Fix It

By the ErrorCodePro Editorial Team · Last reviewed October 20, 2026

Samsung top-load washer error code nF means: Water supply error. An improperly installed drain hose causes fill water to siphon out through the washer drain. [1] Keep using it? Only if the owner checks below clear the code; if it returns, stop and book a repair. Start with the owner checks below, beginning with: write down the code and model number.

Source: Samsung top-load washer error-code chart, via Sears PartsDirect [1].

Quick facts

Code	nF
Also shown as	nF1
Brand / appliance	Samsung top-load washer
System	Water fill
Meaning (service chart)	Water supply error. An improperly installed drain hose causes fill water to siphon out through the washer drain. [1]
Keep using it?	Only if the owner checks below clear the code; if it returns, stop and book a repair
DIY-safe?	Owner checks only (listed below)
Support	Samsung Support Center (samsung.com/us/support)
Source document	Samsung top-load washer error-code chart (via Sears PartsDirect)

On this page: Meaning · Steps · Parts · When to call a technician · Related codes · FAQ

What error code nF means on a Samsung top-load washer

Water supply error. An improperly installed drain hose causes fill water to siphon out through the washer drain. [1]

This is a water fill code. Codes and wording can vary by model, so check your owner's manual for your model number.

How to fix Samsung top-load washer error code nF (safe owner checks)

Safety first: disconnect power before you remove any panel or reach into the sump or drum. Do not touch wiring, the control board or the motor. If you see water near electrical parts, stop and call a technician. These steps are based on the Samsung top-load washer error-code chart (via Sears PartsDirect) [1], rewritten for clarity.

Write down the code and model number. Note exactly what the display shows (nF) and copy the full model number from the rating label, so you can confirm this chart applies to your top-load washer and order the right parts.
Open the water supply. Make sure that the water supply faucets behind the washer are fully open. Unplug the washer, shut off the water supply faucets and disconnect the fill hoses from the back of the washer to check for proper water flow.
Check the fill hoses. Check for frozen water fill lines in the winter.
Check the drain hose. Check the drain hose for proper installation.
Do a power reset. Unplug the appliance or switch off its breaker for one minute, then restore power and try again. If the code clears and stays away, it may have been a one-off fault.
Test and decide. Run a short cycle or restart and watch the display. If nF comes back after these checks, stop using the washer for this function and call a technician, because the remaining causes need meters or part replacement.

The first and last steps (and the power reset) are general owner checks added by ErrorCodePro; the rest follow the Samsung top-load washer error-code chart published by Sears PartsDirect, rewritten for safe owner use.

Parts that may be involved

Exact parts depend on your model number. This page lists part types only, never part numbers.

Water inlet valve assembly

When to call a technician

If the screens are clogged, a technician should replace the water inlet valve assembly rather than cleaning the screens.
Anything involving wiring, the control board, the motor or the water valve electrics
The appliance is under warranty: contact Samsung Support Center (samsung.com/us/support) first

Frequently asked questions

What does error code nF mean on a Samsung top-load washer?

The Samsung top-load washer error-code chart lists nF as follows: Water supply error. An improperly installed drain hose causes fill water to siphon out through the washer drain.

Is it safe to keep using the top-load washer with nF?

Only if the owner checks below clear the code; if it returns, stop and book a repair.

Can I fix Samsung top-load washer error nF myself?

Only with the owner checks on this page, starting with: write down the code and model number. If it persists, call a technician or Samsung Support Center (samsung.com/us/support).

Is nF1 the same as nF?

Yes. The source chart lists nF1 with the same meaning as nF; the display format depends on the model.

Sources

Sears PartsDirect: Samsung top-load washer error-code chart (third-party copy of manufacturer service data)

Last reviewed: October 20, 2026. ErrorCodePro is not affiliated with Samsung.