Category: Samsung

Problem: The wash heater is overheating. The temperature sensor detected heat above safe limits. This is either a bad sensor or a stuck heater relay.

How to Fix HC1 Error

• UNPLUG washer from electrical power. Wait 20 minutes for components to cool completely.
• Remove lower front access panel to expose heater assembly mounted on tub front.
• Disconnect electrical wires from heater terminals. Label wires for correct reconnection.
• Test heater element resistance with multimeter: set to resistance mode. Proper reading is 20-40Ω.
• If multimeter displays OL (infinite resistance), element has open circuit and must be replaced.
• Remove mounting bolts securing heater to tub (typically 2-3 bolts). Note gasket position.
• Extract old heater assembly. Clean tub mounting surface thoroughly with isopropyl alcohol.
• Install new heater assembly using OEM part DC97-14470A with new gasket. Torque mounting bolts to 15 ft-lbs in crisscross pattern.
• Reconnect wires securely. Reassemble access panel. Run sanitize cycle while monitoring for leaks and proper heating.

Problem: The dryer heater (on combo units) is overheating. This is usually caused by a blocked air duct or a bad fan preventing proper airflow over the heater.

How to Fix HC2 Error

• UNPLUG washer from electrical power.
• Remove lower front access panel to access tub assembly.
• Locate thermistor mounted near heater assembly on tub wall. Disconnect wiring harness.
• Measure resistance across thermistor terminals with multimeter. At room temperature, should read ~10kΩ.
• If resistance reads near zero ohms (shorted) or fluctuates wildly, replace thermistor.
• Remove mounting screw securing sensor. Gently pry thermistor from tub wall without damaging threads.
• Clean mounting surface on tub with isopropyl alcohol. Apply thermal conductive paste to new sensor base.
• Install new thermistor using OEM part DC34-00040A. Secure with mounting screw tightened to 8 in-lbs.
• Reconnect harness. Inspect wiring for melted insulation near heater; repair if damaged.
• Reassemble panel. Run warm water cycle to verify temperature display updates smoothly.

Problem: No drain – water not evacuating within 15 minutes

How to Fix nd Error

1. Unplug washer and turn off water supply valves.
2. Remove lower front panel (3 screws at bottom edge).
3. Place towels underneath, then slowly unscrew drain pump filter cap counter-clockwise to release water gradually.
4. Clear all debris (coins, hairpins, lint) from filter housing and impeller chamber.
5. Manually rotate pump impeller clockwise with finger – should spin freely without grinding or binding.
6. Reinstall filter snugly (hand-tight plus 1/4 turn maximum – overtightening cracks housing).
7. Check drain hose for kinks beyond 90° bends and ensure standpipe height doesn’t exceed 96 inches.
8. If error persists: Disconnect pump wiring harness and measure resistance across terminals (should read 12-18Ω).
9. Replace drain pump assembly DC34-00008A if impeller damaged or motor open-circuit.

Still Not Working?

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

Problem: Water temperature sensor fault during fill cycle

How to Fix 4E1 Error

1. Verify cold water hose connected to cold inlet valve (common installation error).
2. Disconnect power and access thermistor at bottom front of tub (behind lower panel).
3. Disconnect connector and measure resistance across thermistor terminals at room temperature (70°F/21°C = ~12kΩ).
4. Submerge thermistor tip in ice water – resistance should increase to 30-40kΩ within 30 seconds.
5. Replace thermistor DC34-00024A if readings OL (open) or 0Ω (short) or unstable.
6. Inspect wiring harness for rodent damage or pinched wires near tub mounting points.
7. Check connector J3 on main PCB for corrosion – clean with electrical contact cleaner if present.

Still Not Working?

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

Problem: Incoming water temperature exceeds 50°C (122°F) for delicate cycles

How to Fix 4E2 Error

1. Confirm cold water supply hose connected to cold faucet (not hot water source).
2. Run cold water at nearby faucet for 60 seconds to clear hot water from pipes.
3. Install thermostatic mixing valve on cold water line if household plumbing cross-connected.
4. Test thermistor operation as per 4E1 procedure to verify accurate temperature reading.
5. Replace inlet valve assembly DC62-00243A if thermistor tests good but hot water still entering during cold fill cycle.
6. Check for faulty mixing valve inside machine (if equipped) causing hot/cold cross-flow.

Still Not Working?

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

Problem: Door lock mechanism failure during operation (lock disengaged mid-cycle)

How to Fix dE1 Error

1. Power cycle washer (unplug 5 minutes).
2. Check for foreign objects trapped between door glass and gasket preventing full closure.
3. Inspect door strike plate alignment on front panel – should engage lock hook squarely without binding.
4. Test lock operation in diagnostic mode: press Spin + Temp + Power, then Spin button to activate lock solenoid.
5. Listen for double-click indicating lock engagement.
6. Measure 120V AC at lock connector during lock attempt – if present but no engagement, replace door lock assembly DC34-00028A.
7. Verify lock hook movement not restricted by bent strike plate or misaligned door hinge.

Still Not Working?

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

Problem: Door open during operation attempt or door switch not detecting closure

How to Fix DC Error

1. Close door firmly until distinct click heard – apply 15-20 lbs pressure at handle.
2. Inspect door latch hook for bent metal preventing full engagement with strike plate.
3. Check door strike alignment – loosen 2 screws securing strike plate and adjust position if misaligned (gap should be 1/16″ when closed).
4. Clean door gasket thoroughly with vinegar solution – buildup can prevent full closure.
5. Test door switch continuity with multimeter while door closed (should read closed circuit <1Ω).
6. If switch faulty: replace door lock assembly DC34-00028A.
7. Check door hinge screws for looseness causing misalignment.

Still Not Working?

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

Problem: Heating element thermistor fault (models with water heater)

How to Fix tE1 Error

1. Access thermistor at bottom of tub near heating element (requires draining tub completely).
2. Disconnect power and verify tub empty before servicing.
3. Measure resistance as per tE procedure at ambient temperature.
4. Check connector for mineral deposits causing poor contact – clean with electrical contact cleaner and small brush.
5. Verify thermistor physically secured to tub with mounting clip (loose sensor gives False readings).
6. Replace thermistor DC34-00024A if resistance out of spec.
7. Verify heater element resistance separately (should read 20-30Ω) to rule out heater failure causing thermistor error.

Still Not Working?

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

Problem: Inlet water thermistor fault (cold water monitoring sensor)

How to Fix tE2 Error

1. Locate secondary thermistor near inlet valve assembly (top rear of machine behind control panel).
2. Disconnect power and access sensor by removing top panel and control panel screws.
3. Disconnect connector and measure resistance at ambient temperature (should match main thermistor curve).
4. Compare readings to main tub thermistor – should be within 10% at same temperature.
5. Replace inlet thermistor DC34-00024B (different OEM number from main tub sensor) if readings unstable or out of range.
6. Check for water leaks around sensor housing causing False high-temperature readings.
7. Inspect wiring harness for damage near sharp metal edges.

Still Not Working?

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

Problem: Thermistor signal out of range – PCB interpretation error or reference voltage fault

How to Fix tE3 Error

1. Verify both main and inlet thermistors test within specification using resistance chart.
2. Inspect all thermistor wiring harness connections at PCB (J3, J
3. for corrosion or bent pins.
4. Check for water intrusion in wire loom causing signal noise – look for green corrosion on connectors.
5. Measure 5V reference voltage at thermistor input pins on PCB during operation (should read stable
6. 0±
7. 2V).
8. If sensors and wiring good but error persists immediately on power-up: replace main control board DC92-01543A.
9. After PCB replacement, perform auto-calibration cycle per service manual (Spin + Temp + Power, navigate to calibration menu).

Still Not Working?

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