Samsung Washer Error Codes — Complete nF, 5E, UE, dE, 3E Guide for WF and WA Models

Samsung washers communicate problems through alphanumeric error codes displayed on the LED or digital panel. Unlike some brands that use simple blink patterns, Samsung uses specific letter-number combinations that directly identify the failed system. Understanding these codes eliminates guesswork and tells you exactly which component needs attention. This comprehensive guide covers every Samsung washer error code across both WF (front-load) and WA (top-load) model families.

How Samsung Displays Error Codes

Samsung uses a segmented LED display on most models. This creates a common confusion: the digit "5" displayed on a 7-segment LED looks identical to the letter "S" — so the drain error "5E" sometimes appears as "SE" to owners reading the display. Similarly, "6E" can look like "bE" depending on the display type. Always refer to Samsung's official documentation using the numeric-first format.

To access stored error codes on Samsung washers:

• WF front-load models: Press and hold Temp + Spin Level simultaneously for 5 seconds. Recent error codes display in sequence.
• WA top-load models: Press and hold Delay End + Soil Level for 5 seconds.
• SmartThings app: Navigate to your washer > Home Care > Smart Care. The app reads the stored error log via NFC or audio signal and provides plain-language descriptions.

Water Supply Errors — nF, 4E, 4E1, 4E2, 4C, 4C2

nF / 4E — No Water Fill

Meaning: The water level has not risen within the expected time after the inlet valve opened. The washer detects no incoming water.

Samsung-specific causes:

1. Inlet valve clogged — Samsung's inlet valve orifices are narrower than Whirlpool or LG valves. Sacramento's hard water (150-300 ppm) deposits calcium inside these small orifices faster than on competing brands. Remove supply hoses from the valve and inspect the inlet screens — white mineral buildup is the usual culprit.
2. Inlet valve solenoid failure — The valve contains electromagnetic solenoids that open when energized. Test with a multimeter for 900-1200 ohms resistance across the solenoid terminals.
3. Water supply turned off — Check both hot and cold valves at the wall. Samsung washers require both lines connected even if you only wash in cold — some cycles verify hot water availability.
4. Low water pressure — Samsung specifies minimum 20 PSI. Below this, the valve cannot overcome the internal spring to open fully.

Parts: Inlet valve assembly — model-specific, typically $35-$65 Professional repair: $120-$220

4E1 / 4E2 — Temperature-Specific Fill Error

4E1: Hot water supply issue — hot water not reaching temperature within expected time. 4E2: Water temperature too high (above 70C). Samsung's safety threshold prevents scalding damage to clothes. Check your water heater thermostat — should be at 120F (49C) for residential use.

Drain Errors — 5E, nd, 5C, OE

5E / nd — Drain Failure

Meaning: Water level has not dropped within the expected time (typically 10 minutes) after the drain pump was activated.

Samsung-specific diagnostic path:

1. Clean the debris filter (lower-left access door on WF models). This resolves 35% of 5E errors immediately.
2. Check drain pump impeller — reach through the filter housing and spin it by hand. Should rotate freely.
3. Verify drain hose height — Samsung requires 24-36 inches elevation to the standpipe entry.
4. Test pump directly — if the pump is silent during drain phase, the control board relay may have failed.

Key Samsung detail: The "5E" code often displays as "SE" on older LED panels (the "5" segment display mimics an "S"). Do not search for "SE error" — it is always documented as "5E" in Samsung service manuals.

Parts: Drain pump DC31-00054A — $35-$75 Professional repair: $150-$260

OE — Overflow Error

Meaning: Water level has risen above the safety threshold. Either the inlet valve is stuck open, or the water level sensor is misreading.

Samsung-specific note: The OE error triggers the drain pump to run continuously as a safety measure. If your Samsung washer is draining non-stop, OE is active. The inlet valve on Samsung washers can develop a partial sticking condition where the solenoid does not fully close after fill — dripping water slowly raises the level between cycles.

Balance/Spin Errors — UE, Ur, dC, U6

UE / Ur — Unbalanced Load

Meaning: The control board detected excessive vibration or drum displacement during spin-up and cancelled the spin cycle.

Samsung-specific VRT connection: On WF front-load models with VRT Plus, the UE code has two distinct meanings:

1. Actual unbalanced load — redistribute clothes and restart. Heavy single items (jeans, towels) without counterbalancing items trigger UE.
2. VRT system degradation — if UE appears frequently regardless of load distribution, the three steel balls inside the VRT balance ring have developed flat spots and can no longer effectively counterbalance. Replace the balance ring.

Additional Samsung UE causes:

• Worn shock absorbers (DC66-00470A) — the drum oscillates beyond the control board's acceptable threshold
• Suspension rods worn (WA top-load models) — friction dampers no longer grip
• Spider arm partial fracture — drum weight distribution is permanently off-center

dC / U6 — Door Open During Cycle

Meaning: Door lock signal lost during operation. The control board detected that the door opened or the lock disengaged mid-cycle.

Samsung-specific: This code appears when vibration causes the door lock connector to lose contact momentarily. If dC appears during spin specifically, check the wire harness connector at the door lock — Samsung's connector design can work loose from vibration.

Motor Errors — 3E, 3E1, 3E2, 3E3, 3E4, 8E, 8E1

3E Family — Motor/Hall Sensor Errors

Samsung's direct-drive motor system uses a hall sensor to report rotor position and speed. The 3E family codes indicate the control board cannot verify motor operation:

Samsung hall sensor fix: The hall sensor (mounted on the stator at the machine rear) is a small PCB with a 3-wire connector. It costs $25-$55 and takes 20 minutes to replace — often resolving all 3E codes without replacing the entire motor.

Parts: Hall sensor $25-$55; Stator assembly $150-$350 Professional repair: $150-$500 depending on component

8E / 8E1 — Overcurrent

Meaning: Motor drew more current than the control board's threshold. On WA top-load models, this typically indicates a locked transmission or heavily overloaded drum.

Door Lock Errors — dE, dE1, dE2, dC, LO, FL

dE / dE1 — Door Lock Failure

Meaning: The door lock did not confirm engagement within the expected time (about 10 seconds after the lock command).

Samsung door lock (DC64-01538A) failure modes:

• Wax motor burned out — no audible click when lock should engage
• Lock mechanism physically jammed — click heard but latch does not extend
• Wire harness fault — connector pins corroded from humidity

Self-diagnosis: After unplugging and replugging the washer, attempt to start a cycle. Listen for the door lock click. No click = electrical failure (wax motor or wiring). Click but no lock engagement = mechanical failure inside the lock assembly.

Parts: Door lock DC64-01538A — $45-$85 Professional repair: $150-$280

Heating Errors — HE, HE1, HE2 (Models with Internal Heater)

HE / HE1 — Heater Error

Meaning: The internal water heater (on select Samsung models with heated wash cycles) did not raise water temperature within the expected time, or temperature exceeded safety limit.

Note: Many US-market Samsung washers do not have internal heaters — they rely on your home's hot water supply. If your model shows HE and you have never had heated cycles, the temperature sensor (thermistor) may be sending false readings to the control board.

Communication Errors — AE, AE5, AE6

AE — Communication Error

Meaning: The main control board and the sub-board (display/UI board) cannot communicate. This indicates a wiring fault between the two boards, or one board has failed.

Samsung-specific: Power surges are the primary cause of AE errors on Samsung washers. The communication line between boards is low-voltage and unprotected — a surge can damage the communication IC on either board.

Miscellaneous Codes

SmartThings Smart Care Diagnostics

For WiFi-connected Samsung washers, the SmartThings app provides a more user-friendly diagnostic path:

1. Open SmartThings on your phone.
2. Select your registered washer.
3. Tap Home Care then Smart Care.
4. For older models without WiFi: hold your phone near the Smart Care NFC tag on the machine, OR tap "Start via Sound" and the washer emits audio data tones that your phone's microphone captures.
5. The app decodes the error and provides specific repair guidance.

Error Code Reset Procedure

After repairing the underlying cause, clear stored error codes:

1. Unplug the washer for 60 seconds (hard reset).
2. Plug back in and run a short cycle (Rinse + Spin).
3. If the code returns, the underlying issue was not resolved.

Important: Simply resetting without repair does not fix the problem. Samsung's control board re-detects the fault and re-displays the code within the same cycle or next cycle.

FAQ

Q: My Samsung washer shows SE — what does that mean?

"SE" on a Samsung washer LED display is actually the code "5E" (drain error). Samsung's 7-segment LED displays render the digit "5" in a way that looks like the letter "S." The code indicates a drain failure — clean the debris filter first, then check the drain pump if the filter is clear.

Q: Why does my Samsung washer show UE even with a balanced load?

If redistributing clothes does not clear the UE code, the VRT Plus balance ring has likely degraded. The three steel balls inside the ring develop flat spots after 5-7 years and can no longer counterbalance effectively. Alternatively, worn shock absorbers allow excessive tub movement that triggers UE even with properly distributed loads.

Q: How do I enter diagnostic mode on my Samsung washer?

On WF front-load models: press and hold Temp + Spin Level for 5 seconds. On WA top-load models: press and hold Delay End + Soil Level for 5 seconds. The display enters test mode and shows stored codes, then cycles through component tests.

Q: My Samsung washer shows 3E — is the motor dead?

Not necessarily. The 3E code most commonly indicates a failed hall sensor ($25-$55 part) rather than a failed motor ($150-$350). The hall sensor reports rotor speed to the control board — when it fails, the board cannot verify the motor is running and flags 3E. Try the hall sensor replacement first before condemning the motor.

Q: Can power surges cause Samsung washer error codes?

Yes. Samsung's control boards are notably sensitive to power surges. A surge can damage relay contacts (causing 5E from dead pump relay), communication ICs (causing AE), or motor driver circuits (causing 3E/8E). Install a surge protector to prevent recurrence — this is especially important in older Sacramento neighborhoods with aging electrical infrastructure.

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Error codes on your Samsung washer tell you exactly what failed — but fixing it requires the right parts and expertise. Our technicians carry Samsung-specific components and can decode, diagnose, and repair the same day. Schedule a repair →