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Error code reference

Kenmore Dishwasher Error Code E2

NTC (temperature sensor) error.

Kenmore codesKenmore dishwasher codes

NTC (temperature sensor) error.

First step from the service manual

Measure resistance between the NTC orange wires and compare to NTC resistance chart values.

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

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What E2 means on a Kenmore dishwasher

The E2 error code on a Kenmore dishwasher indicates a fault in the NTC (Negative Temperature Coefficient) thermistor circuit. The NTC sensor is responsible for monitoring wash water temperature throughout the cycle, providing real-time resistance readings that the control board uses to regulate heating. As water temperature rises, the resistance of an NTC thermistor drops in a predictable curve. When the control board receives a resistance value that falls outside the expected range for that NTC type, it flags the E2 fault and halts or disrupts normal operation.

The primary diagnostic step is to disconnect the NTC sensor and measure resistance across its two orange wires using a multimeter, then compare that reading against the NTC resistance chart specific to this model. A sensor that reads open (infinite resistance) or shorted (near-zero resistance) is definitively failed. Readings that are simply out of range for a given water temperature may indicate a degraded sensor or a wiring problem between the sensor and the control board.

Common root causes include a failed NTC thermistor, damaged wiring in the orange wire harness, corroded connector pins, or a faulty control board that misreads valid sensor signals. Water intrusion into the connector housing is a frequent source of corrosion-related faults in this circuit. Before replacing components, inspect the full length of the orange wire harness for chafing, pinching, or burn marks, and clean or replace any corroded connector terminals.

Source: manufacturer service documentation.

Common causes of E2

  1. 01

    Failed NTC thermistor

    Part replacement

    The NTC sensor itself has failed, producing an out-of-range, open, or shorted resistance reading. Measuring resistance across the orange wires and comparing to the resistance chart will confirm this if the value does not match expected levels for the current water temperature.

  2. 02

    Corroded or damaged NTC connector

    Wiring / connection

    Moisture or detergent residue can corrode the connector pins on the orange wire harness, causing intermittent or failed conductivity. Inspect the connector for green or white corrosion deposits and clean or replace the connector as needed.

  3. 03

    Damaged orange wire harness

    Part replacement

    The wiring between the NTC sensor and the control board may be chafed, pinched, or broken. A visual inspection along the full harness route combined with a continuity test will identify any open or short in the circuit.

  4. 04

    Loose or disconnected wiring connection

    Wiring / connection

    A connector that has vibrated loose from the NTC sensor or control board will interrupt the signal entirely, triggering E2. Check that all connectors in the orange wire circuit are fully seated.

  5. 05

    Faulty control board

    Part replacement

    If the NTC sensor and all wiring measure correctly against the resistance chart, the control board may be misinterpreting the signal due to a failed input circuit. This is the least likely cause and should be considered only after all other components are confirmed good.

See the test procedure for each cause

Frequently asked questions about E2

What does E2 mean on a Kenmore dishwasher?
E2 indicates an NTC temperature sensor error. The control board is receiving a resistance reading from the NTC thermistor that falls outside the acceptable range, which prevents the dishwasher from accurately monitoring water temperature. The fault can stem from the sensor itself, the orange wire harness connecting it, or the control board.
How do I fix the E2 error on my Kenmore dishwasher?
Start by measuring resistance across the two orange wires connected to the NTC sensor and compare that reading to the NTC resistance chart for your model. If the resistance is out of range, replace the NTC thermistor. If the sensor reads correctly, inspect the orange wire harness and connectors for damage or corrosion and repair as needed before suspecting the control board.
Is it safe to run my Kenmore dishwasher with an E2 error?
Running the dishwasher with an active E2 error is not recommended. Without reliable temperature feedback, the control board cannot properly regulate the heating element, which could result in inadequate cleaning, overheating, or further component damage. The issue should be diagnosed and corrected before resuming normal use.
Will resetting my Kenmore dishwasher clear the E2 error?
A power reset may temporarily clear the E2 code, but the error will return if the underlying fault in the NTC sensor or wiring has not been repaired. A reset is useful for confirming whether the fault is intermittent, but it is not a fix on its own.
How much does it cost to repair an E2 error on a Kenmore dishwasher?
Repair costs vary depending on the faulty component. An NTC thermistor is generally an inexpensive part, with DIY repair costs typically ranging from around 10 to 40 dollars for the sensor alone. If a control board replacement is required, parts and labor can range from 150 to 350 dollars or more depending on the model and service provider.

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