Author: ApplianceFixGuide Team

Problem: DC bus undervoltage on inverter circuit (<250V DC) - rectifier or supply fault

How to Fix 9C2 Error

1. Measure AC input voltage at terminal block TB1 (must be >105V AC under load).
2. Check noise filter output voltage under load – should match input within 2V.
3. Inspect rectifier diodes D1-D4 on PCB for opens (test forward bias
4. 4-
5. 7V, reverse OL).
6. Test DC bus capacitor capacitance with LCR meter – replace PCB if <80% rated value (450V 680μF minimum).
7. Verify no excessive current draw from other loads causing voltage sag during motor startup.
8. Replace main PCB DC92-01543A if components test good but DC bus collapses under load.
9. Confirm proper wire gauge on dedicated circuit (minimum 14 AWG for 15A circuit; 12 AWG recommended).

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 9C2 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: High temperature circuit fault – heater element or thermostat failure

How to Fix 9C6 Error

1. Disconnect power and drain tub completely using drain cycle or manual pump-out.
2. Access heating element at bottom front of outer tub (remove lower panel and element cover).
3. Measure element resistance between terminals (should read 20-30Ω; OL = open circuit failure).
4. Test high-limit thermostat continuity (mounted adjacent to element) – should read closed circuit at room temperature, open at 185°F.
5. Replace heating element DC47-00013A if open circuit or terminals burnt/corroded.
6. Replace thermostat if open circuit at room temperature.
7. If both test good: replace main PCB DC92-01543A (faulty heater relay RL3 or temperature monitoring circuit).
8. Verify proper water level during heat cycles – low water causes overheating errors (check pressure switch operation).

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

Still Not Working?
If the Samsung washer 9C6 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: Hardware overcurrent – physical short circuit detected (fire hazard)

How to Fix 9C7 Error

1. UNPLUG WASHER IMMEDIATELY – safety hazard present. Do not operate until repaired.
2. Visually inspect all wiring harnesses for melted insulation or chafing against sharp edges (pay attention to motor and heater connections).
3. Disconnect all loads (heater, pump, motor) at PCB and power up briefly – if error clears, reconnect loads one-by-one to isolate fault.
4. Test each load for shorts to ground with megohmmeter (>1MΩ required; <100kΩ indicates fault).
5. Inspect PCB for burnt traces near power relays or inverter section (look for carbon tracking).
6. Replace main PCB DC92-01543A and any damaged wiring harnesses.
7. NEVER operate washer with this error until root cause identified – fire risk exists from uncontrolled current 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 9C7 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: Software overcurrent – current sensing circuit fault or False trigger

How to Fix 9C8 Error

1. Power cycle washer (unplug 5 minutes) to clear transient fault.
2. Test water level sensor/pressure switch DC96-01703G operation as per 4E procedure.
3. Inspect pressure tube for cracks or moisture accumulation causing False high-level signal.
4. Clear drain filter thoroughly – partial blockage can trigger False overcurrent during pump operation.
5. If sensor tests good but error returns during drain cycle: replace main PCB DC92-01543A (faulty current sensing IC U
6. .
7. After PCB replacement, perform auto-calibration cycle per service manual to reset current thresholds.
8. Verify proper drain hose height (max 96 inches) to prevent backpressure during pump operation.

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

Still Not Working?
If the Samsung washer 9C8 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: Overflow condition detected by leak sensor system – tub overfilled

How to Fix LC1 Error

1. Tilt machine backward to drain base pan water completely.
2. Inspect pressure tube connection at tub top air dome – disconnected tube causes continuous fill.
3. Test water level sensor DC96-01703C operation (blow into tube while monitoring switch continuity – should toggle at
4. 5 PSI).
5. Check inlet valve for sticking open – enter diagnostic mode to cycle valve operation 5 times.
6. Replace water level sensor if switch fails to activate at proper pressure or frequency output unstable.
7. Replace leak sensor DC96-01703A if base pan dry but error persists (False trigger from mineral deposits).
8. Verify drain pump activates before next fill cycle to prevent cumulative overfill – test pump operation in diagnostic mode.

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 LC1 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 level sensor frequency out of range – pressure switch fault

How to Fix 1E Error

1. Inspect pressure tube for cracks, kinks, or disconnection at tub air dome and sensor (common failure at sharp bends).
2. Disconnect tube at sensor and blow through entire length to clear moisture blockage (tube must be completely dry).
3. Submerge tube end in water and blow gently – should see steady stream of bubbles indicating clear passage.
4. Test sensor output frequency with multimeter in frequency mode (should read 28-32kHz at empty tub, 22-26kHz at full tub).
5. Replace water level sensor DC96-01703C if frequency unstable (<20kHz or >35kHz) or no change with pressure applied.
6. Check tub air dome port for soap scum blockage – remove hose clamp and clean port with pipe cleaner or small brush.
7. Verify pressure tube has proper drip loop below tub connection to prevent moisture migration to sensor.

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 1E 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: Power button held >13 seconds or stuck switch causing control fault

How to Fix bE1 Error

1. Power cycle washer completely (unplug 5 minutes) to reset control logic.
2. Inspect control panel for liquid spills causing button short (look for residue around buttons).
3. Remove top panel (3 rear screws) and disconnect control panel ribbon cable from main PCB.
4. Clean ribbon cable contacts with 90% isopropyl alcohol and lint-free cloth – let dry 5 minutes.
5. Test button matrix continuity with multimeter in diode mode – power button should read open circuit when released, ~
6. 6V when pressed.
7. Replace control panel assembly DC97-15318A if button stuck closed or ribbon cable damaged (traces cracked).
8. Ensure no objects pressing against control panel during operation (laundry baskets, shelves).

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 BE1 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: Control button stuck or MEMS vibration sensor fault

How to Fix bE2 Error

1. Power cycle washer completely.
2. Press all buttons firmly 5 times each to free potential mechanical stick from detergent residue.
3. Enter diagnostic mode (Temp + Delay Start + Power) to test individual button responses on display.
4. If specific button unresponsive or stuck: replace control panel DC97-15318A.
5. If all buttons functional but error persists: locate MEMS sensor on tub top center (small black 5mm cube).
6. Inspect MEMS sensor connector for moisture corrosion or loose connection.
7. Replace MEMS sensor DC96-01703B if connector clean but error returns immediately after power cycle (sensor internally shorted).

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 BE2 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: Communication error between main PCB and sub PCB/control panel

How to Fix AE Error

1. Power cycle washer completely (unplug 10 minutes).
2. Remove top panel and locate main-to-control ribbon cable (typically 10-16 pin flat cable, gray connector).
3. Disconnect both ends carefully using connector release tabs – inspect for bent pins or moisture damage.
4. Clean contacts with 90% isopropyl alcohol and lint-free cloth – let dry completely.
5. Check cable routing for pinch points near sharp metal edges or screw penetrations.
6. Test continuity of all conductors in ribbon cable with multimeter (no opens or shorts between adjacent pins).
7. If cable tests good: replace control panel DC97-15318A first (less expensive component).
8. If error persists after panel replacement: replace main PCB DC92-01543A.
9. After repairs, perform communication test in service mode to verify error-free data transfer.

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 AE 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: Flash code: 1 blink pattern = door lock system fault (models without display)

How to Fix FL1 Error

1. For models with LED blink patterns instead of display: Count blinks after power-on (1 blink = door lock fault).
2. Ensure door fully closed until audible click.
3. Inspect door gasket for obstructions preventing seal.
4. Remove top panel and check door lock wiring harness for damage near hinge area.
5. Test door lock solenoid resistance (300-600Ω normal).
6. Manually activate lock mechanism through front panel access hole – should engage smoothly.
7. Replace door lock assembly DC34-00028A if solenoid open-circuit or mechanism binding.
8. Verify 120V AC present at lock connector during lock attempt using multimeter.

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 FL1 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.