AL13
De Dietrich User Interface / Display Board Fault

Freezer shows AL13; display may be blank or partially lit, and controls may not respond.

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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.

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Possible Causes

Failed display PCB, Loose ribbon cable between UI and main board, Moisture ingress into control panel, Damaged touch buttons

How to Fix / Troubleshooting

Safety first: Unplug the freezer before removing the control fascia.

  • Check for condensation: Wipe any moisture from around the control panel. If the panel has been exposed to steam or spills, allow it to dry completely before further testing.
  • Inspect connections: Remove the control fascia and check the ribbon cable or harness between the display board and the main PCB. Reseat both ends carefully.
  • Look for damage: Examine the display board for corrosion, burnt components, or cracked solder joints at the connectors.
  • Replace UI board if needed: If the display remains faulty after reseating cables, replace the user interface/display board with the correct De Dietrich part.
  • Test: Reassemble, restore power, and verify that the display and buttons now function and AL13 is cleared.
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Repair Difficulty

Medium 3/5

Required Part

User Interface / Display Board
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