Electrolux Microwave Error Code LOCK ON

LOCK ON means the Child Lock feature is currently active on your Electrolux microwave, which disables the entire control panel. This is a built-in safety function designed to prevent unintended operation. It is not an error or a sign of a malfunction. Pressing user pref and then START will deactivate the Child Lock and restore normal operation.

The microwave itself is not damaged or in an unsafe condition when LOCK ON is displayed. The appliance is simply locked and will not accept any cooking commands until the Child Lock is deactivated. Once you clear the lock using the user pref and START sequence, the microwave will operate normally.

In nearly all cases, no technician or parts are needed to resolve LOCK ON. The condition is cleared through a simple button sequence on the control panel. Parts or professional service would only be relevant if a physically damaged or stuck control panel pad is causing the lock to activate on its own repeatedly, in which case control panel replacement costs typically range from $50 to $150 depending on the model.

To clear LOCK ON, touch the user pref pad on the control panel and then press the START pad. This key sequence disables the Child Lock feature and re-enables all control panel functions. If the display does not change after this sequence, ensure the microwave is properly plugged in and the door is fully closed before trying again.

Unplugging the microwave may not clear the Child Lock, as many Electrolux models retain user settings including the lock state through power cycles. The correct way to clear LOCK ON is to use the designated deactivation sequence: press user pref followed by START. Relying on a power reset alone may result in LOCK ON reappearing when the unit powers back on.