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Error code reference

Electrolux Dishwasher Error Code F1

Temperature stop fault

Electrolux codesElectrolux dishwasher codes

Temperature stop fault — the temperature rise is less than 5°C in ten minutes; the programme exits from the heating stage and continues in the process.

First step from the service manual

Check element, thermistor, water level, circulation pump and control unit, wiring.

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

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What F1 means on a Electrolux dishwasher

The F1 error code on an Electrolux dishwasher indicates a temperature stop fault, meaning the wash water failed to rise by at least 5°C within a ten-minute heating window. When this threshold is not met, the control unit detects insufficient heating progress and exits the heating stage, allowing the programme to continue without reaching the target wash temperature. This results in a completed cycle that may not have adequately cleaned or sanitized the load.

The heating system in these dishwashers relies on a resistive heating element to raise water temperature, a thermistor to report real-time temperature readings to the control unit, and adequate water volume circulated by the pump. If any of these components fails or underperforms, the 5°C-in-ten-minutes threshold cannot be met. A failed or partially failed heating element is the most common cause, but a thermistor reporting incorrect temperature data can cause the same fault even when the element is functioning. Low water level prevents the element from transferring heat efficiently and can also trigger this code.

Diagnosing F1 requires checking the heating element for continuity, testing the thermistor resistance against the expected values for its temperature range, confirming adequate water fill level, and verifying that the circulation pump is moving water across the element during the heating phase. Wiring connections to the element, thermistor, and control unit should also be inspected for corrosion, loose terminals, or damage, as an open circuit in any of these paths will prevent the heating stage from completing correctly.

Source: manufacturer service documentation.

Common causes of F1

  1. 01

    Failed heating element

    Part replacement

    The resistive heating element is the most common cause of F1. A burnt-out or open-circuit element produces no heat, making it impossible to achieve the required 5°C rise in ten minutes. Test the element for continuity with a multimeter; a reading of no continuity confirms failure.

  2. 02

    Faulty thermistor

    Part replacement

    If the thermistor is sending incorrect temperature readings to the control unit, the controller may believe no temperature rise has occurred even when the element is heating normally. Check the thermistor resistance and compare it to the expected value for the current water temperature.

  3. 03

    Insufficient water level

    Wiring / connection

    The heating element must be submerged in water to transfer heat effectively. Low water fill, caused by a faulty inlet valve or float switch, leaves the element unable to heat the water volume quickly enough to meet the threshold.

  4. 04

    Circulation pump fault

    Part replacement

    The circulation pump moves water across the heating element during the wash cycle. If the pump is not running at full capacity or has failed, water is not circulated properly and heat distribution is poor, contributing to a slow temperature rise.

  5. 05

    Wiring or control unit fault

    Wiring / connection

    Loose, corroded, or damaged wiring between the heating element, thermistor, and control unit can interrupt the circuit and prevent the heating stage from operating correctly. Inspect all related wiring connectors and terminals. If wiring is intact, the control unit itself may need evaluation.

See the test procedure for each cause

Frequently asked questions about F1

What does F1 mean on a Electrolux dishwasher?
F1 on an Electrolux dishwasher signals a temperature stop fault. The dishwasher monitors water temperature during the heating stage and requires at least a 5°C rise within ten minutes. When that rise is not detected, the control unit logs F1, exits the heating stage, and continues the programme without reaching the target temperature. This typically points to a problem with the heating element, thermistor, water fill level, circulation pump, or related wiring.
Can I fix the F1 error myself?
Some causes of F1 are accessible to a confident DIYer. You can check the water fill level, inspect wiring connections for obvious corrosion or looseness, and test the heating element for continuity with a multimeter. Replacing the heating element or thermistor is also a manageable repair if you are comfortable working with appliance components. However, if the circulation pump or control unit is the source of the fault, a qualified technician is recommended.
Is it safe to keep using my dishwasher when F1 is showing?
When F1 is active, the dishwasher completes the cycle without reaching the correct wash temperature, meaning dishes may not be properly cleaned or sanitized. It is not a fire or flood hazard in most cases, but continuing to run the machine without addressing the fault means cycles will be ineffective. It is best to diagnose and resolve the issue before relying on the appliance for regular use.
How much does it cost to repair an Electrolux dishwasher F1 error?
Repair costs depend on the faulty component. A replacement heating element typically costs between $20 and $60 for the part, while a thermistor is generally in the $10 to $30 range. If you hire a technician, labour charges are additional and vary by region. A circulation pump or control unit replacement will be significantly more expensive, potentially ranging from $100 to $300 or more including parts and labour.
Will resetting the dishwasher clear the F1 error?
A reset may clear the F1 code temporarily, allowing the dishwasher to start a new cycle. However, if the underlying fault with the heating element, thermistor, water level, pump, or wiring is not corrected, the error will return during the next heating stage. Resetting is useful for confirming the fault is repeatable, but it is not a fix and should be followed by a proper diagnosis.

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