L1
Beko Low Temperature Alarm / Overcooling

L1 or LO error and temperature display shows very low value, bottles feel too cold or partially frozen

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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

Stuck relay on main PCB keeping compressor on, Faulty cabinet temperature sensor reading too high, Incorrect thermostat calibration, Ambient temperature too low for appliance location

How to Fix / Troubleshooting

Safety: Unplug the unit before accessing internal components.

  • Check setpoint: Verify that the temperature setting is not at the minimum. Adjust to a higher temperature and monitor for several hours.
  • Relocate appliance: If the wine cooler is in a very cold room (e.g., unheated garage), move it to a location within the specified ambient range in the user manual.
  • Inspect cabinet sensor: Access and test the cabinet NTC sensor. A sensor reading too high will cause overcooling. Replace if out of spec.
  • Control board: If the compressor runs almost constantly regardless of setpoint and sensor is good, the compressor relay on the main PCB may be stuck closed. Replace the main control board.
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Repair Difficulty

Medium 3/5

Required Part

Main Control Board
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