Display shows AL04 and the appliance may not respond correctly to temperature settings.
Safety Warning
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
How to Fix / Troubleshooting
Safety first: Unplug the refrigerator before accessing sensors or the control board.
Identify faulty sensor:
- Consult the user manual or service documentation (if available) to determine which sensor AL04 refers to on your specific model.
- Visually inspect all accessible sensors (fridge, freezer, evaporator, ambient) for damage or disconnection.
Testing:
- Disconnect each suspect sensor and measure resistance at room temperature. Replace any sensor with 0 Ω or infinite resistance.
- Inspect and reseat connectors at the main control board.
Next steps: If all sensors and wiring are good, the main control board may be faulty and should be replaced by a professional.
Repair Difficulty
Required Part
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