AL15
Brandt
Voltage Protection / Power Supply Error
Freezer shows AL15; unit may not start after a power outage or brownout
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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
Low or high mains voltage detected, Damaged surge protection components on control board, Loose mains connector, Internal power supply failure on PCB
How to Fix / Troubleshooting
Safety first: Unplug the freezer before opening any electrical compartments.
Steps:
- Check mains voltage: Use a reliable meter or consult an electrician to ensure your supply voltage is within the range specified on the rating plate.
- Try a different outlet: Plug the freezer directly into a known-good wall outlet without extension cords or adapters.
- Inspect power cord and plug: Look for heat damage or loose pins. Replace if necessary.
- Access control board: Inspect for burnt surge components (MOVs, fuses) or damaged tracks. If any are damaged, replace the entire control board.
- After replacing the board: Monitor operation and avoid sharing the circuit with heavy loads that cause voltage dips.
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Repair Difficulty
Hard
4/5
Required Part
Main Control Board
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