LG Washer Error Code tE

LG Washer tE Error Code — What It Means and How to Fix It

The LG washer tE error code indicates a temperature sensor problem detected by the machine’s control board. On many LG washers and washer-dryer combos, tE commonly means the thermistor or temperature-sensing circuit is open, shorted, or returning a value outside the expected range. This can occur when the sensor itself fails, wiring or connectors are damaged, or the main control board is misreading the signal. When a tE error appears, the washer may pause mid-cycle, fail to heat water (in models with a heater), or stop certain cycles entirely. User impacts include longer or incomplete wash cycles, clothes not being cleaned effectively, reduced energy efficiency, and in rare cases additional stress on components if cycles continue with incorrect temperature data.

Common Causes

• Failed thermistor or temperature sensor (NTC sensor) on the tub or heater assembly
• Loose, corroded, or disconnected wiring or connector between the sensor and control board
• Damaged or pinched wiring harness due to routing or mechanical wear
• Faulty main control board (PCB) that misinterprets the sensor signal
• Malfunctioning heater element or heater assembly on washer-dryer combos that affects the circuit
• Moisture intrusion or water damage to connectors or the sensor assembly
• Intermittent contact from vibration or an unbalanced load causing false readings

Troubleshooting Steps

1. Power cycle the washer: unplug the machine or switch off its breaker for 1 minute, then restore power. Sometimes transient faults clear and the error will reset.
2. Run a diagnostic or test mode if your model supports it. Many LG washers offer a diagnostic cycle that can display additional error details and help confirm tE repeats consistently.
3. Inspect visible wiring and connectors. Unplug the washer and check sensor wiring for burns, breaks, pinched sections, or water damage. Reseat any quick-connect plugs to ensure firm contact.
4. Check for moisture or corrosion around connectors and the sensor. Dry and clean with electrical contact cleaner if needed, and allow components to fully dry before testing.
5. Measure the sensor with a multimeter if you are comfortable doing so. With the washer powered off and the sensor disconnected, check continuity or resistance and compare with manufacturer specs in the service manual. If the sensor is open or out of spec it should be replaced.
6. Inspect the heater assembly on washer-dryer combos. A failed heater or short in that circuit can trigger temperature faults. Only qualified technicians should disassemble heater components.
7. Swap or reseat the harness between the sensor and main board if possible. Intermittent wiring faults often show up after moving harnesses during inspection.
8. If wiring and sensor test normal, consider the control board. A failing PCB or damaged input circuit may misread a healthy sensor; replacing the control board may resolve persistent, unexplained tE errors.
9. After repairs, run a full wash cycle to confirm the error is cleared and the washer completes cycles normally.
10. If the error persists or you are uncomfortable with electrical troubleshooting, stop and contact a certified LG service technician to avoid further damage or safety risk.

Maintenance / Prevention Tips

• Keep the washer in a dry location and avoid exposing connectors to excessive moisture.
• Periodically inspect the back panel where wiring harnesses enter the cabinet for signs of wear or chafing.
• Run a maintenance wash periodically to prevent buildup that can affect sensors in the tub area.
• Avoid overloading the washer; excessive vibration can stress wiring and connectors.
• Use appropriate detergent and follow manufacturer load recommendations to reduce mechanical stress on components.
• When moving the washer, secure wiring and avoid pulling on harnesses; have a technician disconnect wiring if needed for transport.
• Address minor leaks promptly; water intrusion near electronics accelerates corrosion and sensor failure.
• Inspect and replace aging connector blocks and harnesses during routine service intervals.
• Use surge protection for the outlet to reduce the risk of control board damage from voltage spikes.
• Follow the owner’s manual cleaning and maintenance guidance for door seals, detergent drawers, and filter areas.
• Schedule professional maintenance if you notice recurring errors, unusual noises, or inconsistent cycle behavior.
• Keep the washer level to reduce vibration and protect electrical connections.
• Record error occurrences and patterns to help technicians diagnose intermittent faults faster.
• Replace OEM sensors and parts when needed rather than using unknown aftermarket components that could misreport values.
• When replacing parts, label and photograph harness routing to ensure correct reassembly and avoid pinched wires.

FAQs

Q: What exactly does tE mean on my LG washer?
A: tE typically refers to a temperature sensor error. It means the washer is getting no signal or an out-of-range signal from the thermistor or temperature-sensing circuit.

Q: Can I keep using the washer with a tE error?
A: It is not recommended. The washer may stop mid-cycle or fail to heat water if needed, producing poor wash results. Continuing to use it could risk further component damage.

Q: Is fixing a tE error a DIY job?
A: Basic inspection and reseating connectors are safe DIY steps. However, electrical testing and replacing sensors or control boards require moderate technical skill. If you are not comfortable with electrical diagnostics, call a qualified technician.

Q: How much will repair cost?
A: Costs vary by model and region. Replacing a thermistor is usually inexpensive for parts but labor varies. Control board replacement is more costly. Get a diagnostic quote from a certified repair provider.

Q: Will replacing the sensor always fix the tE code?
A: Often yes if the thermistor is faulty, but if wiring or the control board is at fault the error can persist. Proper diagnosis is key.

Conclusion and Safety Notice

The LG washer tE error is a medium-severity issue that often points to a faulty temperature sensor, wiring problem, or control board issue. Some repairs are straightforward, but electrical work and control board replacement should be handled with caution. Always disconnect power before inspecting internal components, and avoid working on live circuits. If the error persists after basic checks or you lack the tools or experience to test sensors and PCB circuits, contact a certified LG technician. Professional service ensures safe, reliable repairs and helps prevent further damage to your washer.

For persistent tE errors or if you smell burning, see smoke, or notice significant water leaks, stop using the washer immediately and call a professional technician or LG support for prompt service.