Samsung Washer Error Code NF | Water Fill Problem Causes & Fixes
Samsung washer error code NF means the washer is not filling with water. Learn what causes the NF error, how to fix it step by step, and prevention tips.
1/22/20262 min read
What Does Samsung Washer Error Code NF Mean?
NF = No Water Filling Detected
The washer attempted to fill with water but did not sense the required water level. To prevent damage and incomplete washing, the cycle is stopped automatically.
On some models, similar errors may appear as 4C or 4E, which also indicate water supply issues.
Common Causes of the NF Error
🚰 Water Supply Turned Off
One or both water taps connected to the washer may be closed.
🚿 Low Water Pressure
Insufficient water pressure prevents the washer from filling in time.
🔧 Clogged Inlet Filters
Sediment or debris blocks the small mesh filters inside the inlet valve.
🔄 Kinked or Twisted Inlet Hoses
Bent hoses restrict water flow into the washer.
⚙️ Faulty Water Inlet Valve
A damaged valve cannot open to allow water inside.
🧠 Pressure Sensor or Control Board Issue
Less common, but possible if all supply checks are normal.
Step-by-Step Fix for Samsung Washer Error Code NF
Step 1: Check Water Taps
Ensure both hot and cold water taps are fully open
Even cold-only washes require both taps on some models
Step 2: Inspect Inlet Hoses
Straighten any kinks or bends
Check for leaks or damage
Ensure hoses are tightly connected
Step 3: Clean the Inlet Filters
Turn off water supply
Disconnect inlet hoses from the back of the washer
Remove the small mesh filters
Rinse under running water
Reinstall and reconnect hoses
Clogged filters are the most common cause of NF errors.
Step 4: Check Water Pressure
Run a tap in the same area
If pressure is weak, wait until supply improves
Avoid running washer during low-pressure hours
Step 5: Reset the Washer
Unplug the washer for 5 minutes
Plug it back in
Restart the cycle
This clears temporary sensor errors.
When to Call a Technician
You should seek professional service if:
Error NF appears even with good water supply
Inlet valve does not open at all
Washer fills very slowly
Error returns after all checks
This may indicate a failed inlet valve or sensor issue.
Is It Safe to Use the Washer With NF Error?
❌ No.
Running the washer without proper water intake can:
Damage internal components
Cause incomplete washing
Trigger additional error codes
Always resolve the issue before continuing use.
Samsung washer error code NF indicates a water supply problem, not a major mechanical failure. In most cases, opening the taps, cleaning inlet filters, or fixing hose issues resolves the problem quickly.
With proper water supply and basic maintenance, your Samsung washer will continue to operate smoothly and efficiently.
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