Samsung Washer NF Error Code: No Fill Detected

Quick Answer

NF fires on some top-load Samsung models instead of 4E for the same water supply fault. Diagnosis and repair steps are identical to the 4C/4E error.

NF usually pops up right after a move or when someone shut the main water off for yard work and forgot to fully open it back up. It means the board gave up waiting for water to trip the pressure switch. If you hear humming but no water's moving, you're almost certainly looking at a clogged inlet screen. Takes maybe 10 minutes to check. Don't ignore it though - running the pump dry will kill it fast.

SamsungWasherSeverity: moderate92% DIY Success

Time to Fix

20–60 min

Difficulty

beginner

Parts Cost

$35 – $60

Tools Needed

Phillips #2 screwdriver, Adjustable wrench or channel-lock pliers

What Does the NF Code Mean?

When I see an NF code on a Samsung top-loader, I check the hose connections first thing. These machines are really sensitive to pressure drops, and even a slightly kinked hose or a partially closed faucet will trigger the fault. It's basically a protective measure to keep the pump from running dry, so don't just keep smashing start without checking the flow first. Nine times out of ten it's something stupid simple.

Most Likely Causes

Based on aggregated repair data, here is the probability breakdown for this error code:

Supply valves not fully open40%

Inlet valve screens clogged with sediment24%

Kinked fill hoses22%

Inlet valve solenoid failed14%

Symptoms You May Notice

Drum stays completely dry at cycle start - you hear the machine click through its startup routine and maybe a hum, but zero water sounds.
NF code flashes on the display during the initial fill phase, usually within the first 4-5 minutes of a cycle.
Clothes come out bone dry after a full supposedly completed cycle because the machine timed out and bailed without ever filling.
You can hear the inlet valve clicking or humming but water's barely trickling in - like a thin dribble instead of a solid flow.
Machine keeps restarting the fill attempt over and over before finally giving up and locking in the NF code.

Can you reset a Samsung washer to clear the NF code?

After fixing the water supply issue, don't just hit Pause and restart. Press and hold the Power button until the display goes completely dark. Wait a full 60 seconds - the board needs time to clear. Plug it back in, power it on, and run a new cycle from scratch. The board runs through a fresh pressure sensor baseline on startup. If NF comes back within the first few minutes, something's still restricting flow and you need to dig deeper.

Tools Required for Diagnosis

Phillips #2 screwdriverAdjustable wrench or channel-lock pliersNeedle-nose pliersDigital multimeterOld toothbrushWhite vinegarTowels or a small bucket

Diagnostic Checklist

Follow these steps in order. We start with the easiest external fixes before opening up the machine.

ComponentComponent Under Test

Expected Range600–1000 ohms

ConditionIf Open (OL) or infinite, replace component.

Replacement Parts

If your diagnostic testing proves the component has failed, you will need a replacement. We recommend OEM parts over aftermarket for water-handling components.

Part Name	OEM Number	Estimated Price
Combined Dual Inlet Valve AssemblyDC62-30314N · $35–$60	DC62-30314N	$35 – $60

Frequently Asked Questions

What's the difference between NF and 4E on a Samsung washer?

They're the exact same fault, just different naming conventions Samsung used across different production runs. NF stands for No Fill, 4E is the newer alphanumeric version. If you're looking up parts or repair videos you can treat them as completely identical. The internal logic that triggers both is the same - board times out waiting for a water level change and throws the fault. Doesn't matter which one your display shows, the diagnosis and fix are identical.

Can NF appear even when the water is turned on?

Yeah, all the time - this is actually the most common scenario I run into. The inlet screens can be 85% clogged and just enough water trickles through to make a sound but not enough to fill the tub before the software timer runs out. Machine basically times out and quits. Also check your drain hose setup. If it's shoved more than 6 inches down the standpipe you get a siphon effect where water leaves the drum as fast as it enters. Machine thinks it's never filling. Pull the drain hose out so it's just 4-6 inches into the standpipe.

How much does fixing an NF error code usually cost?

Totally depends on the cause. Clogged screen? Free. Ten minutes of your time. New inlet valve? You're looking at $35-65 for the part depending on your model, plus $80-150 labor if you hire a tech. Honestly this is one of the better DIY repairs out there. The valve's right there when you pop the top panel and there are basically two connectors and two screws. I'd say 80% of homeowners can handle this one without calling anyone.

Will running the washer with an NF code damage it?

Don't keep hitting start hoping it clears on its own. Running the drain pump without water puts real wear on it. And if your clothes are sitting in a drum that never filled, you're just tumbling dry laundry with undissolved detergent. Motor's fine but you're not actually washing anything and you're burning unnecessary cycles on a machine that's already telling you something's wrong. Fix the supply issue first.

My Samsung shows NF only sometimes, not every load. What causes intermittent NF?

Intermittent NF is almost always a pressure issue. Low household water pressure during peak usage times - evenings when everyone's showering - can trigger it occasionally. Could also be a screen that's partially clogged. Flows OK when pressure's good, fails when pressure dips slightly. Start by cleaning those inlet screens because that fixes maybe half of intermittent cases. If it keeps happening, grab a water pressure gauge from the hardware store (like $10) and check your pressure at the washer. You want 20 PSI minimum at the connection, ideally 40-80.

Related Samsung Washer Error Codes

Code: 4CSamsung Washer 4C Error Code: No Water Supply (Front Load)Code: 4ESamsung Washer 4E Error Code: Water Supply Fault (Top Load)

Same Fix on Other Brands

Lg washerIE: LG Washer IE Error Code

Same Fix Works on These Brands

Samsung shares the same hardware platform with these brands. The diagnosis and repair steps are identical.

Samsung washerSamsung Washer 3C2 Error Code: Motor Stall Samsung washerSamsung Washer 3E Error Code: Motor Fault Samsung washerSamsung Washer 4E Error Code: Water Supply Fault (Top Load)Samsung washerSamsung Washer 5C Error Code: Drain Error (Older Display)Samsung washerSamsung Washer 8C Error Code: Vibration Sensor Fault Samsung washerSamsung Washer 8E Error Code: Motor Frequency Sensor Fault

Models Known to Experience NF Errors

This repair applies to most Samsung washers with this error code. Common model numbers include:

WA54R7200AW, WA50R5400AW, WA45T3400AW, WA48H7400AW, WA52J8700AP, WA56H9000AP, WA47R8000AW, WA50K8600AV

Written by

Mike Sullivan

Lead Appliance Repair Technician · 20 years experience

Last verified for technical accuracy on March 14, 2026