Freezer displays AL12; the temperature display may flash, and the unit may not reach the set temperature.

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

Defective ambient NTC sensor, Sensor dislodged from the correct position, Damaged sensor wiring, Control board misreading the sensor

Safety first: Unplug the freezer before accessing any external or internal sensor wiring.

Steps:

Locate ambient sensor: On some Brandt models, an ambient sensor is located near the condenser or behind a grille on the cabinet.
Inspect sensor: Check for physical damage, corrosion, or disconnection.
Test resistance: Disconnect the sensor and measure its resistance at room temperature. Compare it to Brandt's NTC chart. Replace if out of specification.
Check wiring: Follow the sensor leads to the control board, ensuring no pinched or broken sections.
If the sensor and wiring are fine: Replace the main control board, as it may be misinterpreting the ambient reading.

Medium 3/5

Ambient Temperature Sensor (NTC)

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