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Error code reference

Samsung Washer Error Code nd

Drain error caused by damaged pump motor impeller, wrong voltage supplied, part fault, freezing, clogged…

Samsung codesSamsung washer codes

Drain error caused by damaged pump motor impeller, wrong voltage supplied, part fault, freezing, clogged drain hose, or disconnected water pump terminal with foreign material collected inside drain pump assembly.

First step from the service manual

Check whether the revolutions of the drain pump motor are restrained by foreign material and check drain pump resistance (14.2 Ω ±7% at 20°C).

The complete diagnostic procedure includes additional test steps, resistance specifications, wiring diagram references, and component test points.

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What nd means on a Samsung washer

The nd error code on a Samsung washer indicates a drain failure. The machine attempted to drain water within the expected time window but could not complete the cycle. This code points to a problem within the drain pump assembly, which includes the pump motor, impeller, wiring harness, and the drain hose routing. The control board monitors pump motor rotation speed and current draw, and when it detects that the motor is not spinning freely or that water is not clearing the tub, it stops the cycle and displays nd.

The drain pump motor operates at a specific resistance value of 14.2 ohms, plus or minus 7%, measured at 20 degrees Celsius. A reading outside this range indicates a failed pump motor winding. Beyond motor failure itself, the impeller inside the pump housing can crack or break, which prevents it from moving water even when the motor shaft is spinning. Foreign material such as coins, buttons, or lint buildup can jam the impeller mechanically, causing the motor to stall under load. A disconnected or corroded terminal at the pump connector will also prevent the motor from receiving power, producing the same symptom as a failed motor.

Additional causes include a kinked or clogged drain hose, which creates enough back pressure to overwhelm the pump, and incorrect supply voltage reaching the pump motor. In cold-weather installations, water inside the drain hose or pump housing can freeze and block flow entirely. Diagnosing this code requires physically inspecting the pump for debris, checking impeller rotation by hand, measuring pump resistance at the motor terminals, and verifying that the drain hose is clear and properly routed without low-point sags that could trap water.

Source: manufacturer service documentation.

Common causes of nd

  1. 01

    Foreign material jamming the drain pump impeller

    Wiring / connection

    Coins, buttons, hairpins, or accumulated lint can enter the pump housing and physically block the impeller from spinning. Manually rotating the impeller with the pump disconnected from power will confirm a jam if the impeller feels stiff or refuses to turn.

  2. 02

    Clogged or kinked drain hose

    Wiring / connection

    A drain hose that is kinked, pressed against a wall, or has a sag that traps standing water creates a restriction the pump cannot overcome. Inspect the full length of the hose from the pump outlet to the standpipe and clear any blockage or reposition the hose routing.

  3. 03

    Failed drain pump motor

    Part replacement

    A pump motor with a burned or open winding will measure outside the specified resistance of 14.2 ohms plus or minus 7% at 20 degrees Celsius. A reading that is far outside this range, or an open circuit reading, confirms the motor has failed and the pump assembly needs replacement.

  4. 04

    Disconnected or corroded pump wiring terminal

    Wiring / connection

    The connector at the drain pump motor can back out or corrode, cutting power to the motor entirely. Inspect the terminal block at the pump for loose pins, corrosion, or burn marks, and reseat or replace the connector as needed.

  5. 05

    Cracked or damaged pump impeller

    Part replacement

    Even when the motor runs and the terminal connections are solid, a cracked impeller will slip on the shaft and fail to move water. This requires removing the pump assembly and visually inspecting the impeller for fractures or missing vanes.

See the test procedure for each cause

Frequently asked questions about nd

What does nd mean on a Samsung washer?
The nd code means the washer detected a drain error and could not remove water from the tub within the expected time. It is triggered when the drain pump motor is blocked by foreign material, the drain hose is clogged or kinked, the pump motor has failed, the wiring terminal is disconnected, or in cold environments, water in the pump or hose has frozen. The pump motor should measure 14.2 ohms plus or minus 7% at 20 degrees Celsius to be considered functional.
Can I fix the nd error on my Samsung washer myself?
Many cases of the nd code can be resolved without professional help. Start by checking the drain pump filter for trapped objects and inspect the drain hose for kinks or clogs. If the pump impeller spins freely and the hose is clear, use a multimeter to check pump motor resistance at the terminals and compare it to the specification of 14.2 ohms at 20 degrees Celsius. If the motor is out of spec, the pump assembly will need to be replaced, which is a moderately involved repair requiring access to the pump housing.
Is it safe to run my washer when the nd code is showing?
No, you should not run the washer while the nd code is active. The machine has halted because it cannot drain, meaning water is still sitting in the tub. Running additional cycles without resolving the drain problem can cause the motor to overheat or allow water to overflow. Resolve the drain issue before attempting another wash cycle.
Will resetting my Samsung washer clear the nd error code?
A reset may temporarily clear the nd code display, but the error will return on the next cycle if the underlying cause has not been corrected. Resetting does not fix a blocked impeller, a failed pump motor, or a kinked drain hose. Use a reset only to clear the code after you have completed the necessary repairs and confirmed the pump is functioning properly.
How much does it cost to repair a Samsung washer nd error?
If the fix is simply clearing a foreign object from the pump or repositioning the drain hose, there is no parts cost and only your time is involved. A replacement drain pump assembly typically costs between 40 and 120 dollars in parts depending on the model. If you hire a technician, expect total repair costs in the range of 150 to 300 dollars including labor, diagnosis, and parts.

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