Display shows AL05 and the appliance may not defrost correctly or may show erratic temperature behavior.

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

Failed evaporator NTC sensor, Sensor wiring damaged by ice, Loose connector at PCB, Faulty main control board

Safety first: Disconnect power before accessing the evaporator area.

Steps:

Remove drawers and the rear inner panel in the freezer to expose the evaporator.
Locate the evaporator sensor clipped to the coil or nearby bracket.
Inspect for damage or corrosion and test resistance with a multimeter. Replace if readings are out of range.
Check wiring from the sensor to the control board for damage and reseat connectors.

After repair: Reassemble, restore power, and monitor for normal operation. If AL05 persists, the main control board may require replacement.

Hard 4/5

Evaporator Temperature Sensor (NTC)

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