Samsung Washing Machine Error Code tE — How to Fix (Thermistor (temp sensor) error)

Overview of the tE Error

The tE (thermistor) error is Samsung’s way of telling you that the temperature‑sensing circuit has failed to provide a valid reading. Modern Samsung front‑load washers use the thermistor to:

• Detect water temperature for optimal detergent dissolution.
• Adjust wash‑time and spin speed based on temperature.
• Enable specialized cycles such as Sanitize or EcoBubble that rely on precise heat control.

When the sensor or its communication path is compromised, the washer may:

• Refuse to start a cycle.
• Pause mid‑cycle with a flashing tE on the display.
• Default to a cold‑water cycle, even when “Hot” is selected.

Understanding how the thermistor works helps you diagnose the problem more efficiently.

How a Thermistor Works (A Quick Primer)

A thermistor is a temperature‑dependent resistor. Samsung uses a Negative Temperature Coefficient (NTC) type, meaning its resistance decreases as temperature increases. The control board continuously reads this resistance and translates it into a temperature value. The expected resistance curve is:

If the board receives a value outside this range, it flags the tE code.

Symptoms That Usually Accompany tE

Updated Model Coverage (2022‑2026)

While the error code is universal across Samsung washers, some newer models have slight design differences that affect access to the thermistor:

Tip: For 2025‑2026 models with dual sensors, replace both thermistors even if only one reads out of range. This prevents future intermittent errors.

Safety First

1. Disconnect power – Unplug the washer or turn off the dedicated circuit breaker.
2. Turn off water supply – Prevent accidental leaks while you remove panels.
3. Wear insulated gloves – Protect against sharp edges and residual voltage.
4. Use a static‑dissipative wrist strap when handling the control board.

Skipping these steps can lead to electric shock, water damage, or injury.

Tools & Parts Checklist

2026 Cost Estimates (U.S. market)

Prices are based on major retailers and authorized Samsung parts distributors as of May 2026. Shipping and tax are not included.

Step‑by‑Step Troubleshooting (Expanded)

Below is a consolidated workflow that incorporates the individual steps from the front‑matter and adds a few best‑practice checks.

1. Power‑Cycle the Unit

• Unplug → wait 30 s → plug back in.
• Observe the display: does tE disappear after a few seconds? If yes, the error was a transient glitch; monitor for recurrence.

2. Visual Inspection

• Remove the top or front panel (refer to your model’s service manual).
• Look for:
  • Corroded connector pins.
  • Water stains around the thermistor housing.
  • Burnt components on the control board.

3. Test the Thermistor

• Disconnect the sensor wires.
• Measure resistance at room temperature; record the value.
• Compare to the table above.
• If the reading is ∞ Ω, 0 Ω, or wildly out of range, the sensor is bad.

4. Replace the Thermistor (if needed)

• Follow the “Step 3” instructions in the front‑matter.
• Re‑install any protective gaskets that were removed.
• Re‑assemble the panel and secure all screws.

5. Verify Wiring Integrity

• With the new sensor in place, use the multimeter in continuity mode to confirm that the connector pins are not broken.
• Apply a small amount of dielectric grease to the pins to guard against future corrosion.

6. Firmware Update (2026 models)

• Open the SmartThings app.
• Ensure the washer is connected to Wi‑Fi.
• Check for “Software Update Available.”
• Follow on‑screen prompts; the update may take 5‑10 minutes.
• After updating, perform a Hot‑Wash cycle to confirm proper temperature detection.

7. Control Board Evaluation

• If the error persists, power off the washer again and remove the control board.
• Inspect for:
  • Blown fuses (some boards have replaceable surface‑mount fuses).
  • Cracked solder joints (common after power surges).
• If you spot damage, order a replacement board using the exact part number printed on the PCB.

8. Final Test

• Re‑connect power, select a Sanitize cycle (requires hot water).
• The machine should complete the cycle without displaying tE.
• If the code returns, note the exact circumstances (e.g., after 10 minutes, during heating) and contact a professional.

Model‑Specific Notes & Common Misdiagnoses

Model‑Specific Access Tips

Common Misdiagnoses

1. Assuming a “Hot‑Water” error – Some users think the washer can’t heat water, but the heater may be fine; the issue is the sensor’s reading.
2. Blaming the water inlet valve – A clogged valve can cause low water temperature, yet the tE code is strictly sensor‑related.
3. Ignoring firmware – Out‑of‑date firmware can misinterpret a perfectly good thermistor, leading to unnecessary part replacement.

If you encounter any of the above, re‑check the sensor resistance and firmware before ordering parts.

Should You Repair This Yourself?

• Control board replacement – Requires soldering skills and ESD protection.
• Persistent error after sensor replacement and firmware update – May indicate a deeper electrical fault.
• Water leaks during disassembly – A qualified technician can safely reseal the tub.
• Warranty still active – Unauthorized repairs could void coverage; contact Samsung Support first.

Frequently Asked Questions (FAQ)

Q1: Can I use a generic thermistor instead of the OEM part?
A: Yes, as long as the resistance range matches the specifications (10 kΩ – 30 kΩ at 20 °C). Verify the part’s datasheet before purchase.

Q2: My washer shows both tE and 4E codes. What does that mean?
A: 4E signals a water‑temperature sensor error, while tE is specifically the thermistor. Often they appear together when the sensor or its wiring is damaged. Follow the thermistor steps first; if 4E remains, inspect the heater element and temperature‑sensor wiring.

Q3: Will a power surge protect my washer from future tE errors?
A: Installing a surge protector on the dedicated circuit can safeguard electronic components, but it won’t prevent corrosion‑related sensor failures.

Q4: How often should I clean the thermistor area?
A: During routine maintenance (every 6‑12 months), wipe any mineral deposits from the sensor housing with a damp cloth and a touch of vinegar, then dry thoroughly.

Preventative Maintenance Checklist

• Monthly: Run a quick “Rinse + Spin” cycle with hot water to keep the sensor clean.
• Quarterly: Inspect wiring connectors for corrosion; apply dielectric grease if needed.
• Annually: Check for firmware updates via SmartThings and install them.
• Every 2 Years: Replace the thermistor proactively if your washer is in a hard‑water area (scale buildup can shorten sensor life).

Related Samsung Error Codes

If you encounter other error codes while troubleshooting, these guides may help:

• Samsung Washing Machine Error Code 4E – Heater and temperature sensor issues.
• Samsung Washing Machine Error Code LE – Water‑level sensor problems.
• Samsung Dishwasher Error Code HE – Similar thermistor error on dishwashers.

Bottom line: The tE error is almost always a thermistor or wiring issue, but firmware glitches and control‑board faults can masquerade as sensor failures. By following the systematic steps above—resetting, testing, replacing, and updating—you can resolve the problem in under an hour for most Samsung front‑load washers released up to 2026. If the issue remains after these interventions, enlist a certified technician to avoid costly missteps.

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