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Error code reference

Electrolux Range Error Code 1,2,3,4,5

Incorrect Micro ID

Electrolux codesElectrolux range codes

Incorrect Micro ID - The microprocessor identification is incorrect.

First step from the service manual

Replace electronic control board.

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

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What 1,2,3,4,5 means on a Electrolux range

Error codes 1, 2, 3, 4, and 5 on an Electrolux range all indicate an Incorrect Micro ID condition. This means the electronic control board's internal microprocessor has failed a self-identification check. During startup, the control board firmware verifies that the microprocessor ID matches an expected value stored in its memory. When this verification fails, the board cannot confirm it is operating with the correct processor identity, and the range will display one of these fault codes to alert the user and technician.

This is a control board-level fault with no external sensor or wiring harness to diagnose. The microprocessor identification failure occurs entirely within the electronic control board assembly itself. Causes include internal component failure on the board, firmware corruption, or a manufacturing or replacement error where an incompatible control board was installed. A power surge or voltage irregularity can also corrupt the microprocessor's identification registers, triggering this fault.

Because the failure is internal to the control board, there are no resistance checks, voltage tests, or sensor diagnostics to perform on external wiring. The direct diagnostic and repair path is replacement of the electronic control board. Attempting to clear the fault through a power reset may temporarily suppress the display, but the fault will return if the underlying microprocessor ID mismatch persists within the board.

Source: manufacturer service documentation.

Common causes of 1,2,3,4,5

  1. 01

    Failed Electronic Control Board

    Part replacement

    Internal failure of the microprocessor or its associated circuits on the control board causes the ID verification to fail. This is the most common cause and requires board replacement.

  2. 02

    Incompatible Replacement Control Board

    Part replacement

    If a control board was previously replaced with an incorrect or incompatible part number, the microprocessor ID will not match what the range expects. Verify the board part number is correct for the specific model.

  3. 03

    Firmware or Memory Corruption

    Part replacement

    A power surge, voltage spike, or interrupted power cycle can corrupt the microprocessor's stored identification data. This type of corruption is not recoverable through a reset and requires board replacement.

  4. 04

    Intermittent Power Supply Issue

    Wiring / connection

    Chronic undervoltage or unstable power delivery to the control board can cause repeated microprocessor faults. Check that the range is receiving stable, correct supply voltage at the terminal block before replacing the board.

See the test procedure for each cause

Frequently asked questions about 1,2,3,4,5

What does 1,2,3,4,5 mean on a Electrolux range?
Error codes 1, 2, 3, 4, and 5 on an Electrolux range all indicate an Incorrect Micro ID fault. This means the electronic control board's microprocessor has failed an internal self-identification check. The range cannot verify that its control board is operating correctly, and the board must be replaced to resolve the issue.
Can I fix the Incorrect Micro ID error myself on an Electrolux range?
The repair requires replacing the electronic control board, which is a task some experienced DIYers can complete. The control board is typically located behind the rear panel or control panel of the range. You should ensure power is disconnected before beginning any repair and verify that the replacement board has the correct part number for your specific model.
Is it safe to use my Electrolux range while it is showing this error?
It is not recommended to continue using the range while this fault is active. A microprocessor ID failure means the control board cannot confirm it is functioning correctly, which could affect control of heating elements, burners, or safety systems. Discontinue use until the control board has been replaced.
Will resetting the Electrolux range clear the Incorrect Micro ID error?
A power reset by disconnecting the range from the outlet or turning off the circuit breaker may temporarily clear the fault display. However, if the microprocessor ID mismatch is due to a failed or incompatible control board, the error will return once power is restored. A reset does not repair the underlying hardware problem.
How much does it cost to fix the Incorrect Micro ID error on an Electrolux range?
The primary cost is the replacement electronic control board, which typically ranges from around $150 to $400 or more depending on the specific model. If you hire a technician, labor costs will add to the total, generally bringing the repair into the $250 to $600 range. Getting a repair estimate before proceeding is advisable, particularly on older units where the repair cost may approach the value of the appliance.

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