F2
La Sommeliere Peltier Power Supply or Driver Fault

Thermoelectric La Sommeliere wine cooler shows F2 and does not cool; fan may run but no cooling occurs.

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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 DC power supply on main PCB, Blown fuse on Peltier circuit, Burnt Peltier driver transistor, Loose harness to Peltier module

How to Fix / Troubleshooting

Safety: Unplug the cooler before working on the electronics.

Steps:

  • 1. Access control board: Remove the rear or top cover to reach the main PCB that powers the Peltier module.
  • 2. Inspect fuses: Look for any onboard fuses in the low-voltage section. Test with a multimeter and replace with the same rating if blown.
  • 3. Check connectors: Ensure the Peltier module connector is firmly seated on the PCB and that wires are intact.
  • 4. Measure output voltage: With power on (only if qualified), measure the DC output to the Peltier module. If no voltage is present while cooling is requested, the PCB is likely faulty.
  • 5. Replace PCB: Install a new La Sommeliere thermoelectric control board if the power supply or driver is defective.
  • 6. Test operation: Reassemble, restore power, and confirm that F2 clears and cooling resumes.

Warning: Board-level component repair (transistors, regulators) should only be attempted by experienced electronics technicians.

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Repair Difficulty

Professional Required 5/5

Required Part

Thermoelectric Control Board
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