What Does Error Code tE Mean on an LG Washing Machine?
Check that the washing machine is not overloaded and run a short rinse-and-spin cycle to reset the error — if the thermistor connection has worked loose due to vibration, this reset process often clears the fault (takes about 5 minutes).
Fault description
When your LG washing machine displays the tE error code, it means the control board has lost confidence in the temperature reading coming from the thermistor — a small sensor attached to or near the heating element. The machine relies on this sensor to monitor water temperature throughout the wash programme, and if the reading falls outside the expected range, the cycle is interrupted to prevent overheating or ineffective washing.
In practice, you will usually notice the drum stopping mid-cycle, often during the heating phase of a programme. The display will show tE and the machine will not continue until the fault is resolved. In some cases the error appears at the start of a heated wash but not on a cold cycle, which is a useful clue that the heating circuit is involved.
The good news is that this fault is not always caused by a failed part. Loose wiring, a temporary sensor glitch, or a build-up of limescale on the heating element can all trigger the same code and are straightforward to investigate before spending money on replacement components.
Causes
- Loose or corroded thermistor wiring connector — Vibration from regular use can gradually work the wiring connector loose from the thermistor or the control board. A poor connection produces an erratic or absent signal, which the machine interprets as a sensor fault.
- Faulty or failed thermistor — The thermistor itself can fail over time, particularly in hard-water areas where mineral deposits accelerate wear. A failed thermistor will send a reading that is either out of range or completely absent, triggering the tE code consistently.
- Heavily scaled or failed heating element — Severe limescale build-up on the heating element can cause it to overheat locally, producing temperature spikes that confuse the thermistor. In some cases the element fails entirely, and the water never reaches the target temperature.
- Control board (PCB) fault — If the main PCB cannot correctly process the signal from the thermistor — due to a damaged input circuit or a software glitch — it will log a tE error even when the sensor itself is working correctly. This is less common but worth considering if all other checks pass.
- Wiring harness damage between thermistor and PCB — The wiring loom running from the thermistor to the control board can be pinched, chafed, or damaged by heat over time. A break or short in this section of wiring will interrupt the temperature signal.
Step-by-Step Fix
- 1
Power cycle the machine
Switch the machine off at the mains and leave it unplugged for at least 5 minutes. This allows the control board to fully discharge and can clear a temporary sensor glitch. Plug back in, select a heated programme, and observe whether the tE code returns.
- 2
Run a cold wash to isolate the heating circuit
Select a cold-water programme (30°C or lower, or a dedicated cold cycle). If the machine completes this without error, the fault is specifically linked to the heating phase, pointing toward the thermistor, element, or their wiring rather than the control board.
- 3
Inspect and reseat the thermistor wiring connector
Disconnect the machine from the mains. Remove the rear panel (usually held by two or three screws along the top edge). Locate the thermistor — it sits on or very close to the heating element at the base of the drum. Unplug the connector, check for corrosion or bent pins, and push it firmly back into place. Restore power and test.
- 4
Test the thermistor resistance with a multimeter
With the machine unplugged, disconnect the thermistor and set your multimeter to the resistance (Ohms) setting. At room temperature, a healthy LG thermistor typically reads between 4,000 and 6,000 ohms. A reading of zero, infinity, or wildly outside this range confirms the thermistor needs replacing.
- 5
Inspect the heating element for limescale and continuity
While the rear panel is off, visually inspect the heating element for heavy white deposits. Test continuity across the element terminals with your multimeter — you should see a resistance reading (typically 20–30 ohms); an open circuit means the element has failed. Descaling tablets used on a maintenance wash can help with mild build-up, but a heavily scaled element usually needs replacement.
- 6
Check the wiring harness for visible damage
Trace the wiring from the thermistor up to the control board, looking for any sections that appear pinched, melted, or chafed against the drum or cabinet. Gently flex the loom while watching your multimeter for continuity changes, which can reveal an intermittent break inside the insulation.
- 7
Replace the thermistor
If testing confirms the thermistor is out of specification, fit a replacement part matched to your specific model number. The thermistor clips or screws onto the heating element and the connector is a simple push-fit. This is one of the more affordable repairs on this fault and resolves the tE code in the majority of cases where wiring checks out fine.
Affected models
Select your model to see its full troubleshooting page.
When to call a service technician
If you have replaced the thermistor and confirmed the wiring harness is intact, but the tE error continues to appear, the fault is likely within the main control board (PCB). PCB diagnosis and replacement requires specialist equipment and carries a risk of further damage if handled incorrectly — this is the point to book a service technician rather than continue with DIY investigation.
You should also call a service technician if you find any signs of burning, scorching, or melted plastic around the heating element or wiring, or if the machine trips your household circuit breaker when it attempts to heat. These symptoms suggest an electrical fault that goes beyond a simple sensor replacement and must be assessed professionally.
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Frequently Asked Questions
Can I still use my LG washing machine while it shows the tE error?
You can run cold-water programmes without the heating element being active, and these will often complete without triggering the tE code. However, you should avoid relying on this as a long-term workaround — a faulty thermistor means the machine cannot regulate temperature safely, and continued use on heated cycles risks damaging the element or control board.
How much does it cost to fix an LG tE error?
If the thermistor is the only failed component, the part itself is relatively inexpensive — typically between £10 and £30 depending on the model. If the heating element also needs replacing, budget an additional £20–£50 for the part. A service technician call-out will add labour costs on top, so it is worth attempting the wiring and thermistor checks yourself first.
Will the tE error clear itself after a power cycle?
Occasionally, yes — if the fault was caused by a temporary sensor glitch or a connector that was slightly loose, a full power cycle can clear the code. However, if the underlying cause is a failed thermistor or damaged wiring, the error will return as soon as the machine attempts a heated wash cycle.
Which LG washing machine models are affected by the tE error?
The tE error can appear on a wide range of LG front-loader models, including the F0712WS, F0812WS, F1056MD, F1056ND, F1056QD series, F1056QP, F1068LD series, F1068QD series, F1073TD, F1091TD series, F1096Q/TDW1, and F1096QDA series, among others. The diagnostic and repair steps are the same across all affected models.
Is the thermistor the same part as the heating element on an LG washing machine?
No — they are separate components, though they work closely together. The heating element generates heat, while the thermistor is a small sensor that monitors the water temperature and reports it back to the control board. On most LG models the thermistor is clipped directly onto the heating element, which is why both parts are often inspected together when diagnosing a tE fault.