Wine cooler displays E10 and the compressor runs continuously or not at all, with incorrect temperature readings.

Safety: Disconnect the appliance from mains before opening any control compartments. Electronic boards are sensitive to static and moisture.

Steps to address E10:

• Power cycle: Unplug the unit for 10–15 minutes, then reconnect. If E10 returns immediately, the control board is likely faulty.
• Inspect for external causes: Verify that all sensors and fans are connected properly and not damaged, as some models may show E10 for severe peripheral faults.
• Access the control PCB: Remove the top or rear control cover (depending on model) to expose the main control board.
• Visual inspection: Look for burnt components, swollen capacitors, or corrosion. If present, the board must be replaced.
• Replace the control PCB: Order the exact SMEG main control PCB for your model and serial range. Transfer any wiring harnesses one by one from the old board to the new board to avoid misconnection.
• Reassemble and test: After replacement, restore power and set the desired temperature. Allow several hours to confirm stable operation.

Warning: Do not attempt component-level repair on the PCB unless you are trained in electronics; incorrect repair can create fire or shock hazards.