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Error code reference

Electrolux Ice Maker Error Code E7

Thermistor 2 open or shorted.

Electrolux codesElectrolux ice maker codes

Thermistor 2 open or shorted.

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What E7 means on a Electrolux ice maker

The E7 error code on an Electrolux ice maker indicates a fault with Thermistor 2, which has been detected as either open circuit or short circuit. A thermistor is a temperature-sensing resistor whose resistance changes predictably with temperature. In an ice maker, multiple thermistors monitor temperatures at critical points in the refrigeration cycle, such as the evaporator, water tray, or outlet areas. Thermistor 2 specifically is one of these sensors, and the control board continuously monitors its resistance to verify readings are within the expected range for operating conditions.

When the control board reads a resistance value that falls outside the acceptable range, either extremely high resistance indicating an open circuit, or extremely low resistance indicating a short circuit, it triggers the E7 fault and halts normal ice production. An open thermistor typically occurs when the sensor's internal element breaks or a wire connection is severed, causing resistance to read as infinite. A shorted thermistor occurs when the sensor's element fails internally or insulation breaks down, causing resistance to read near zero. Both conditions make accurate temperature measurement impossible.

Common causes include physical damage to the thermistor from ice buildup, corrosion at the connector terminals, a broken wire in the harness, or a failed thermistor component itself. The wiring harness between the sensor and the control board should be inspected for pinched, chafed, or corroded sections before replacing the thermistor outright. Connector pins should be checked for oxidation or moisture intrusion, as these can create intermittent or permanent resistance faults that mimic a failed sensor.

Source: manufacturer service documentation.

Common causes of E7

  1. 01

    Failed Thermistor 2 component

    Part replacement

    The thermistor itself may have failed internally, resulting in an open or short circuit condition. Testing the thermistor with a multimeter for resistance outside its specified range will confirm this.

  2. 02

    Corroded or loose connector terminals

    Wiring / connection

    Moisture and temperature cycling can cause oxidation at the thermistor wiring connector, creating high resistance or a broken connection. Inspect the connector for green or white corrosion and ensure the pins are fully seated.

  3. 03

    Damaged wiring harness

    Part replacement

    The wire leads running from Thermistor 2 to the control board may be pinched, chafed, or broken due to ice buildup or mechanical stress. Visually trace the harness and perform a continuity check on each wire.

  4. 04

    Ice or frost damage to the sensor

    Part replacement

    Excessive ice buildup around the sensor mounting location can crack the thermistor housing or strain its leads, causing an open circuit. Inspect the sensor and surrounding area after a full defrost cycle.

  5. 05

    Faulty control board

    Part replacement

    If the thermistor and wiring test within normal parameters, the control board's sensor input circuit may have failed, causing it to misread or not read the thermistor signal. This is less common and should be diagnosed after all other causes are ruled out.

See the test procedure for each cause

Frequently asked questions about E7

What does E7 mean on a Electrolux ice_maker?
The E7 code means the control board has detected that Thermistor 2 is either open circuit or short circuit. This temperature sensor is not providing a valid resistance reading, so the machine cannot monitor a critical temperature point. Ice production will stop until the fault is resolved.
Can I fix the E7 error myself on my Electrolux ice maker?
Some causes of the E7 error, such as a loose connector or corroded terminals, can be addressed by a knowledgeable DIYer with basic tools and a multimeter. Replacing the thermistor itself is a straightforward repair if the part is accessible. However, if the wiring harness or control board is the cause, professional repair is recommended to avoid further damage.
Is it safe to use my Electrolux ice maker when the E7 code is showing?
The ice maker will typically suspend operation when the E7 error is active, as it cannot reliably monitor temperatures without a functioning thermistor. Attempting to bypass or ignore the error is not advisable, since unmonitored temperature conditions could affect ice quality or lead to component damage. The unit should be serviced before returning it to regular use.
How much does it cost to repair an E7 error on an Electrolux ice maker?
Repair costs vary depending on the root cause. A replacement thermistor part typically costs in the range of $15 to $50, and a professional labor charge for diagnosis and replacement can add $75 to $200 or more. If the control board is the cause, parts alone may range from $100 to $300 or higher depending on the model.
Will resetting my Electrolux ice maker clear the E7 error code?
A power reset may temporarily clear the E7 code from the display, but the fault will return if the underlying problem with Thermistor 2 or its wiring has not been corrected. The control board will detect the open or short condition again once it resumes normal monitoring. A permanent resolution requires diagnosing and repairing the actual fault.

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