tE
Samsung Dishwasher
Severity: ModerateWhat Does This Error Mean?
The tE error means your Samsung dishwasher has a temperature sensor problem. The thermistor that monitors water temperature has failed or lost connection. The machine won't heat water properly without this reading.
Affected Models
- DW80R9950UG
- DW80R5061US
- DW80K7050US
- Most Samsung built-in dishwashers
Common Causes
- The thermistor (temperature sensor) has burned out or failed
- The wiring connecting the thermistor to the control board is loose
- Water scale and mineral deposits have coated the sensor
- The heating element has failed and caused the thermistor to overheat
- A control board fault is misreading the temperature signal
How to Fix It
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Turn off the dishwasher and unplug it from the wall.
Wait 10 minutes, then plug back in and try a new cycle.
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Run a hot water tap at your sink for 30 seconds before starting the dishwasher.
This ensures hot water reaches the machine from the start and reduces sensor strain.
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Check if your hot water heater is set to at least 49°C (120°F).
Incoming water that's too cold can cause temperature errors during the wash cycle.
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Remove and clean the lower spray arm and inspect the sump area for debris.
Built-up scale and food debris near the heating element can affect temperature readings.
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If tE persists after a reset, call a technician to test the thermistor.
A multimeter test will confirm whether the sensor is faulty. Replacement is straightforward once diagnosed.
When to Call a Professional
A thermistor replacement is a moderate repair — parts are inexpensive. However, accessing the sensor requires removing the lower spray arm and sump. Expect to pay $80–$200 for a full repair including labor. If the heating element is also faulty, costs rise to $200–$350.
Frequently Asked Questions
Will the dishwasher still clean dishes with a tE error?
Not properly. Without accurate temperature control, the water won't reach sanitising temperatures. Dishes may come out with food residue or remain un-sanitised.
What does a thermistor do in a dishwasher?
A thermistor is a small sensor that measures water temperature. The dishwasher uses this reading to control the heating element. If it fails, the machine can't heat water to the right temperature.
Is the tE thermistor expensive to replace?
The part itself is cheap — usually $15–$40. Labor to access it adds $60–$150 depending on your area. Overall, tE is one of the more affordable dishwasher repairs.