Freezer display shows AL16; unit may not power on fully or may reset intermittently.

Safety first: Working on mains power circuits is hazardous. If you are not experienced, contact a professional.

• Check outlet and breaker: Verify the outlet has correct voltage and the breaker is not tripping. Avoid using extension cords or power strips.
• Inspect power cord: Look for cuts, kinks, or burn marks. Replace the cord if damaged.
• Check internal connections: With power disconnected, remove the rear or top cover and ensure the mains connector to the control board is secure.
• Replace main control board: If external power is stable but AL16 persists and the unit resets or will not power up, the internal power supply on the board is likely faulty and the board should be replaced.

Do not bypass fuses or safety devices. If in doubt, have a qualified technician perform voltage and board tests.