Alarm code AL03; indicates a sensor or temperature monitoring fault in one of the compartments.

This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.

If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.

Possible Causes

Intermittent NTC sensor connection, Sensor out of calibration, Moisture in sensor connector, Control board analog input fault

Safety first: Disconnect mains power before accessing sensors or the control board.

Step-by-step:

Identify affected zone: Check the display or manual to see which compartment AL03 refers to.
Inspect sensor wiring: Access the relevant sensor (refrigerator, freezer, or BioFresh) and check for loose or corroded connectors.
Dry and reseat: If moisture is present, dry the area and reseat the connector.
Monitor: Restore power and observe whether AL03 returns. If it does, the sensor or control board may need replacement.

Medium 3/5

Compartment NTC Sensor or Main Control Board

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