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Error code reference

Kenmore Dishwasher Error Code tE

Thermal error

Kenmore codesKenmore dishwasher codes

Thermal error - thermistor resistance output is abnormal.

First step from the service manual

Check wiring connection and check the electric resistance of the thermistor.

The complete diagnostic procedure includes additional test steps, resistance specifications, wiring diagram references, and component test points.

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What tE means on a Kenmore dishwasher

The tE error code on a Kenmore dishwasher indicates a thermal error caused by an abnormal resistance output from the thermistor. The thermistor is a temperature-sensing resistor located in the wash tub that continuously monitors water temperature during the wash and rinse cycles. The dishwasher's control board reads the thermistor's resistance value and converts it to a temperature reading. When the resistance falls outside the expected range, either too high or too low, the control board interprets this as a fault condition and triggers the tE code.

The most common cause of this error is a wiring issue between the thermistor and the control board. Loose connectors, corroded terminals, or damaged wire insulation can introduce resistance variations or open circuits that produce abnormal readings. A failed thermistor is also a frequent culprit, as the component itself can drift out of its rated resistance range due to heat cycling and age.

Diagnosing this error requires checking the wiring harness connections at both the thermistor and the control board for security and corrosion, then measuring the thermistor's electrical resistance with a multimeter. The resistance reading should fall within the specified range for the component at a given temperature. A reading that is open, shorted, or significantly out of range confirms thermistor failure. If the wiring and thermistor both test within spec, the control board may be misreading the signal and could require further evaluation.

Source: manufacturer service documentation.

Common causes of tE

  1. 01

    Loose or corroded wiring connections

    Wiring / connection

    The connectors linking the thermistor to the control board can loosen or corrode over time, causing resistance readings to fluctuate outside the acceptable range. Inspect both ends of the thermistor wiring harness for secure seating and clean terminals.

  2. 02

    Failed thermistor

    Part replacement

    The thermistor itself can fail, producing a resistance value that is open, shorted, or outside its rated specification. Testing with a multimeter at a known temperature will confirm whether the component has failed and needs replacement.

  3. 03

    Damaged wiring harness

    Part replacement

    Physical damage to the wire insulation, such as pinching, melting, or cracking, can cause shorts or open circuits in the thermistor circuit. Visually trace the wiring from the thermistor to the control board looking for any visible damage.

  4. 04

    Faulty control board

    Part replacement

    If the wiring and thermistor both test within acceptable resistance specifications, the control board may be incorrectly interpreting the thermistor signal. This is a less common cause but should be considered after all other components have been ruled out.

See the test procedure for each cause

Frequently asked questions about tE

What does tE mean on a Kenmore dishwasher?
The tE code stands for thermal error and means the dishwasher's control board has detected an abnormal resistance output from the thermistor, which is the water temperature sensor. The control board monitors this sensor throughout each cycle, and when the resistance reading falls outside the expected range, the tE fault is triggered. The issue can stem from the thermistor itself, its wiring connections, or in some cases the control board.
Can I fix the tE error code myself?
A knowledgeable DIYer can often resolve this error by inspecting and reseating the thermistor wiring connections and testing the thermistor's resistance with a multimeter. If the thermistor has failed, replacing it is typically a straightforward repair. However, if the control board is the root cause, that repair is more involved and may warrant professional service.
Is it safe to run my Kenmore dishwasher with a tE error code?
It is not recommended to continue running the dishwasher while the tE error is active. A faulty thermistor means the appliance cannot accurately monitor water temperature, which could result in inadequate cleaning, improper heating, or unexpected shutdowns mid-cycle. Resolving the fault before continued use is the safer approach.
How much does it cost to repair a tE error on a Kenmore dishwasher?
If the fix is simply reseating a loose wiring connection, there may be no parts cost at all. Replacing a failed thermistor is generally an inexpensive repair, with parts typically ranging from $10 to $40 and labor costs varying by market and service provider. A control board replacement is significantly more expensive, often ranging from $100 to $300 or more including parts and labor.
Will resetting the dishwasher clear the tE error code?
Resetting the dishwasher may temporarily clear the tE code, but if the underlying wiring or thermistor issue has not been corrected, the error will return during the next cycle. A reset is useful for confirming whether the fault is intermittent or persistent, but it is not a substitute for diagnosing and repairing the root cause.

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