Author: ApplianceFixGuide Team

Problem: Water supply error – low flow rate or pressure switch fault

How to Fix 4E Error

1. Clean inlet valve screens as per nF procedure.
2. Verify water pressure minimum 20 PSI at source with gauge.
3. Inspect pressure hose connection at tub top air dome – ensure not cracked or disconnected.
4. Blow through pressure tube to clear moisture blockage (tube must be completely dry).
5. Test pressure switch operation: disconnect tube, apply gentle suction while monitoring multimeter on switch terminals (should toggle at ~
6. 5 PSI).
7. Replace water level sensor DC96-01703C if switch fails continuity test or frequency output unstable.
8. Check for air leaks in pressure system – submerge tube ends in water while running diagnostic fill cycle to spot bubbles indicating leaks.

Still Not Working?

If the replacement part didn’t fix the issue, you may have a wiring problem or main board failure.

Still Not Working?
If the Samsung washer 4E error returns after the basic checks, stop and recheck the full model number, the exact symptom, wiring, sensors, water or drain path, and visible component condition before buying another part.

Problem: Water inlet valve malfunction or reversed hot/cold hose connections

How to Fix 4C Error

1. Confirm hot/cold hoses connected to correct valves (marked H/C on machine rear panel).
2. Swap hose connections temporarily to test if error follows hose position.
3. Clean inlet screens thoroughly with soft brush and vinegar solution.
4. Test individual valve solenoids in diagnostic mode (Temp + Delay Start + Power, then Temp button cycles through valves).
5. Measure resistance across each solenoid (should read 2-4kΩ).
6. Replace inlet valve assembly DC62-00243A if one solenoid fails to activate while other works normally or resistance out of spec.

Still Not Working?

If the replacement part didn’t fix the issue, you may have a wiring problem or main board failure.

Still Not Working?
If the Samsung washer 4C error returns after the basic checks, stop and recheck the full model number, the exact symptom, wiring, sensors, water or drain path, and visible component condition before buying another part.

Problem: No fill – water not entering drum within 40 minutes

How to Fix nF Error

1. Verify both hot/cold water valves fully open (turn counter-clockwise until stop).
2. Disconnect inlet hoses at machine and check for screen filters clogged with sediment (clean with vinegar soak 15 minutes).
3. Ensure hoses aren’t kinked behind machine – minimum bend radius 4 inches.
4. Test water pressure at faucet (minimum 20 PSI required; use pressure gauge).
5. Enter diagnostic mode: press Temp + Delay Start + Power simultaneously, then press Temp button 2 times to activate cold water valve.
6. Listen for distinct valve click – if silent, check voltage at valve terminals (should read 120V AC during fill).
7. Replace inlet valve assembly DC62-00243A if no voltage present at solenoid or screens clean but no water flow.

Still Not Working?

If the replacement part didn’t fix the issue, you may have a wiring problem or main board failure.

Still Not Working?
If the Samsung washer NF error returns after the basic checks, stop and recheck the full model number, the exact symptom, wiring, sensors, water or drain path, and visible component condition before buying another part.

Problem: Door not locked or door switch fault preventing cycle start

How to Fix dE Error

1. Ensure door fully closed until distinct audible click heard.
2. Inspect door gasket for obstructions (lint, coins) preventing full seal.
3. Remove top panel (3 rear screws) and check door lock wiring harness for damage near hinge area.
4. Test door lock solenoid resistance (should read 300-600Ω between terminals).
5. Manually activate lock mechanism with small flat-blade screwdriver through front panel access hole – should engage smoothly with double-click sound.
6. Replace door lock assembly DC34-00028A if solenoid open-circuit or mechanism binding.
7. If lock tests good but error persists: replace main PCB DC92-01543A (faulty lock relay RL
8. .

Still Not Working?

If the replacement part didn’t fix the issue, you may have a wiring problem or main board failure.

Browse all Samsung error codes: Samsung Error Codes

Problem: Door lock timeout; lock fails to engage within 60 seconds

How to Fix LO Error

1. Clean door gasket and lock area of debris.
2. UNPLUG. Test lock microswitch continuity during manual operation.
3. Replace door lock assembly (DC64-00100A).
4. If new lock fails, check main board relay controlling lock circuit.

Still Not Working?

If the replacement part didn’t fix the issue, you may have a wiring problem or main board failure.

Still Not Working?
If the Samsung washer LO error returns after the basic checks, stop and recheck the full model number, the exact symptom, wiring, sensors, water or drain path, and visible component condition before buying another part.

Problem: Alternative leak detection code on specific Samsung models (WF350 series)

How to Fix LE Error

1. Tilt machine backward to drain base pan water completely onto towels.
2. Locate leak sensor under tub (white disc with 2 wires, center-mounted).
3. Dry sensor completely and inspect for mineral deposits – clean contacts with vinegar-soaked cotton swab if corroded.
4. Check all hose connections at pump, valve, and tub for drips using paper towel test (place towel under connections, run 2-minute fill cycle).
5. Run empty cycle while observing base pan with flashlight to pinpoint leak source.
6. Replace leak sensor DC96-01703A if dry but error returns immediately after power cycle.
7. Address root cause leak before sensor replacement to prevent recurrence – most common sources: pump seal, inlet valve, or tub gasket.

Still Not Working?

If the replacement part didn’t fix the issue, you may have a wiring problem or main board failure.

Still Not Working?
If the Samsung washer LE error returns after the basic checks, stop and recheck the full model number, the exact symptom, wiring, sensors, water or drain path, and visible component condition before buying another part.

Problem: Motor tachometer/hall sensor signal error – no speed feedback to inverter

How to Fix 3E Error

1. Unplug washer and remove rear panel.
2. Locate hall sensor connector on motor stator (3-wire white connector near motor windings).
3. Disconnect and inspect for corrosion or bent pins – clean with contact cleaner if needed.
4. Measure resistance between pins 1-2 (should read
5. 5-3kΩ), pins 2-3 (same value).
6. Rotate drum manually 360° while monitoring resistance – should fluctuate smoothly without jumps.
7. Replace hall sensor DC31-00138A if open circuit or erratic readings detected.
8. If sensor tests good: check motor windings (U-V, V-W, W-U should read 5-15Ω balanced within 5%).
9. Replace main PCB DC92-01543A if motor and sensor both test good but error returns immediately on restart.

Still Not Working?

If the replacement part didn’t fix the issue, you may have a wiring problem or main board failure.

Still Not Working?
If the Samsung washer 3E error returns after the basic checks, stop and recheck the full model number, the exact symptom, wiring, sensors, water or drain path, and visible component condition before buying another part.

Problem: The washer cannot detect the motor’s speed or position. This is usually caused by a failed Hall Sensor on the motor or a loose wire connection. The machine stops immediately to prevent damage.

How to Fix 3C Error

1. • UNPLUG the washer from electrical power and wait 5 minutes.
   • Remove the rear access panel to expose the motor assembly and wiring harness.
   • Inspect the motor harness connector at both ends for burn marks, corrosion, or bent pins. Clean contacts with electrical contact cleaner and a soft brush.
   • Test motor windings resistance between terminals U-V, V-W, and W-U using a multimeter. All readings must be equal (typically 2-5Ω). Uneven readings indicate motor failure.
   • Test the hall sensor resistance within the motor assembly per service manual specifications (typically
   • 5-
   • 5kΩ between designated pins).
   • Verify ground continuity at motor mounting bolts—ensure tight connection to chassis.
   • If motor tests faulty, replace entire motor assembly using OEM part DC34-00030A: remove drive belt, stator mounting bolts, and rotor assembly. Install new motor, reattach belt with proper tension, and reconnect all wiring.
   • Reassemble panels and run diagnostic test cycle to verify operation.

Browse all Samsung error codes: Samsung Error Codes

Still Not Working?
If the Samsung washer 3C error returns after the basic checks, stop and recheck the full model number, the exact symptom, wiring, sensors, water or drain path, and visible component condition before buying another part.

Problem: Leak detection sensor activated – moisture detected in base pan

How to Fix LC Error

1. Unplug washer and tilt machine 45° backward (use furniture dolly or 2 assistants) to drain base pan water completely.
2. Remove lower front panel and inspect leak sensor (small white disc under tub center with 2 wires).
3. Dry sensor thoroughly with hair dryer on cool setting for 5 minutes – moisture causes False triggers.
4. Trace water source systematically: check inlet valve connections, drain pump housing seals, tub gasket, and all hose connections for drips.
5. Run empty rinse cycle while observing base pan with flashlight to pinpoint leak source.
6. Replace leak sensor DC96-01703A if base pan dry but error returns immediately (corroded contacts).
7. If slow drip found at inlet valve: replace valve assembly DC62-00243A to prevent recurrence.

Still Not Working?

If the replacement part didn’t fix the issue, you may have a wiring problem or main board failure.

Still Not Working?
If the Samsung washer LC error returns after the basic checks, stop and recheck the full model number, the exact symptom, wiring, sensors, water or drain path, and visible component condition before buying another part.

Problem: The temperature sensor (thermistor) is broken or disconnected. The machine has stopped heating because it cannot read the water temperature. Replace the sensor if the wiring looks good.

How to Fix TE Error

• UNPLUG the washer from electrical power.
• Remove the lower front access panel to access the tub assembly.
• Locate the thermistor mounted on the front of the outer tub. Disconnect its wiring harness.
• Measure resistance across thermistor terminals using a multimeter set to resistance mode. At room temperature (70°F/21°C), reading should be approximately 10kΩ (±10%).
• If resistance reads infinite (open) or near zero (shorted), replace the thermistor.
• Remove the mounting screw securing the sensor. Extract old thermistor and install new OEM part DC34-00040A, ensuring metal surface makes full contact with tub wall.
• Reconnect wiring harness. Inspect entire harness path for damage near tub movement points; repair if necessary.
• Reassemble access panel. Run hot water cycle to verify temperature readings stabilize correctly.

Browse all Samsung error codes: Samsung Error Codes