Samsung Washer nd Error Code: What It Means and How to Fix It
Updated · from manufacturer service documentation
The nd code on a Samsung washer means the water level didn't reach the Reset level during draining, so the washer generated the error after 15 minutes and won't proceed to spin. Per the service documentation, the specific threshold is a 25.5 kHz sensor reading for the reset water level — if the drain step can't get the reading there within 15 minutes, nd appears.
What Causes the nd Code
| Cause | Likelihood | DIY difficulty | Related part |
|---|---|---|---|
| Drain hose or pump physically blocked | Most common | Easy — clear debris | Drain hose / drain pump |
| Water level sensor terminal loose or disconnected | Common | Easy — reconnect terminal | Water level sensor |
| Water level sensor out of frequency range (22–26 kHz normal) | Less common | Moderate — check output frequency | Water level sensor |
| Pressure hose broken or pulled out | Less common | Moderate — inspect hose | Pressure hose |
| Motor or Hall sensor wiring loose/disconnected | Less common | Moderate — check terminals and wiring | Motor / Hall sensor |
| Motor winding resistance out of spec | Rare | Moderate — multimeter | Drive motor |
How to Fix the nd Error, Step by Step
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Confirm the water level sensor terminal is connected firmly
This is the first documented check when the drum isn't rotating due to drain-related sensing.
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Check the water level sensor's output frequency
It should read 22–26 kHz normally. A reading outside that range means the sensor itself needs replacing.
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Check the pressure hose for breaks or displacement
A broken or pulled-out pressure hose can distort the level reading the same way a failed sensor does.
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Work through the physical drain checklist
If the sensor and pressure hose both check out, the drain path itself likely has the problem — see our dedicated Samsung washer not-draining guide for the drain hose height, pump, and Quick Test Mode pump-test checklist.
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Check the motor and Hall sensor connections
Connect the motor and Hall sensor terminals firmly, correct the wire routing, and check both parts directly if draining is confirmed normal but the drum still won't rotate.
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Test the motor winding resistance
Between RED-BLU and RED-WHT wires, normal resistance reads 10–20 Ω. A reading far outside that range points to a failed motor.
Which Models This Applies To
Documented for the Samsung front-load WF328AAW series. The 15-minute timeout and 25.5 kHz reset-level threshold are specific to this platform's water level sensor calibration — don't assume these exact numbers apply to other Samsung washer generations.
See also: Samsung washer not draining · Samsung washer 5C.
Frequently Asked Questions
How long does the washer wait before showing nd?
15 minutes — if the water level doesn't reach the Reset level (25.5 kHz) within that time during draining, nd appears and the washer won't proceed to spin.
Is nd always a drain pump problem?
Not necessarily — the service documentation ties nd to the water level sensor's frequency reading first, before pointing to the physical drain path (hose, pump).
What's the normal frequency range for the water level sensor?
22–26 kHz. Outside that range, the sensor itself needs replacing regardless of whether the drain path is physically clear.
Could a motor problem cause nd even if the drain path is clear?
Yes — if draining tests normal but the drum still won't rotate, check the motor and Hall sensor wiring and the motor's winding resistance (10–20 Ω between RED-BLU and RED-WHT).
Based on the Samsung service documentation for the WF328AAW washer series. Last updated: .