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Error code reference

Electrolux Microwave Error Code LOCKED

Indicates the Child Lock feature is active and the control panel is deactivated; displayed when any pad is…

Electrolux codesElectrolux microwave codes

Indicates the Child Lock feature is active and the control panel is deactivated; displayed when any pad is touched while Child Lock is engaged.

First step from the service manual

Touch the user pref pad and then the START add 30 sec pad to cancel Child Lock.

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

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What LOCKED means on a Electrolux microwave

The LOCKED display on an Electrolux microwave is not a fault or error condition in the traditional sense. It indicates that the Child Lock feature is currently active, which electronically deactivates the entire control panel. When Child Lock is engaged, the microwave will not respond to any pad input except the specific key sequence used to disengage it. The LOCKED message appears on the display each time a user touches any pad, serving as a reminder that the panel is intentionally disabled.

Child Lock is a software-level feature built into the control board firmware. No hardware components are failing when this message appears. The control panel itself, the membrane keypad, and the control board are all functioning normally. The microwave is simply in a protected operating mode designed to prevent unintended use, typically by children. There is no underlying mechanical or electrical fault to diagnose.

The condition is resolved entirely through a specific key sequence: touch the User Pref pad, then immediately touch the Start/Add 30 Sec pad. This two-step input deactivates Child Lock and restores full control panel functionality. If the sequence does not work, verify that both pads are being pressed in the correct order and that the membrane keypad is registering input. A failed keypad membrane could theoretically prevent the unlock sequence from executing, but this is uncommon.

Source: manufacturer service documentation.

Common causes of LOCKED

  1. 01

    Child Lock accidentally activated

    Wiring / connection

    The Child Lock feature was triggered unintentionally, often by leaning against the control panel or pressing multiple pads in sequence. This is by far the most common reason LOCKED appears.

  2. 02

    Child Lock intentionally set and forgotten

    Wiring / connection

    A household member may have enabled Child Lock for safety purposes and not communicated this to other users. The microwave is functioning exactly as intended.

  3. 03

    Control panel membrane keypad issue preventing unlock

    Part replacement

    If the User Pref or Start/Add 30 Sec pad is not registering input due to a worn or damaged membrane keypad, the unlock sequence cannot complete. Test by pressing each pad firmly and listening for a beep response.

  4. 04

    Control board not processing key sequence correctly

    Part replacement

    In rare cases, a malfunctioning control board may fail to process the two-pad unlock sequence even when the keypad is functional. This would typically be accompanied by other erratic panel behavior.

See the test procedure for each cause

Frequently asked questions about LOCKED

What does LOCKED mean on a Electrolux microwave?
LOCKED means the Child Lock feature is active and the control panel has been intentionally deactivated. The microwave will display this message whenever any pad is touched while Child Lock is engaged. This is not a malfunction or error. It is a built-in safety mode designed to prevent unintended operation.
How do I fix the LOCKED message on my Electrolux microwave?
To clear the LOCKED message, touch the User Pref pad and then immediately touch the Start/Add 30 Sec pad. This two-step sequence deactivates Child Lock and restores normal control panel function. No tools, parts, or service technician are needed to resolve this condition.
Is my Electrolux microwave safe to use when it shows LOCKED?
The microwave is not operating while LOCKED is displayed, so there is no active safety hazard. The appliance is simply in a locked state and will not heat food or run any cycle until Child Lock is deactivated. Once you enter the unlock sequence, the microwave returns to normal operation.
Will unplugging or resetting my Electrolux microwave clear the LOCKED message?
Unplugging the microwave and restoring power may clear Child Lock on some units, but this is not the recommended or reliable method. The correct approach is to use the designated key sequence: User Pref pad followed by the Start/Add 30 Sec pad. Using the proper unlock sequence ensures the feature is fully deactivated.
How much does it cost to repair a LOCKED error on an Electrolux microwave?
In the vast majority of cases, there is no repair cost at all since LOCKED simply means Child Lock is active and is resolved with a key sequence. If a damaged membrane keypad is preventing the unlock sequence from working, keypad replacement parts typically range from $20 to $60, with professional labor adding $75 to $150 depending on your area. Control board replacement, if needed, is a more expensive repair in the range of $100 to $250 for parts alone.

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