Wine cooler displays L1 and may beep; the interior feels unusually cold for the set temperature.

Safety: Basic checks can be done with power on; unplug if removing panels.

• Verify set temperature: Confirm the setpoint is appropriate for wine storage (typically 5–18°C, depending on the zone). Adjust if accidentally set too low.
• Check door seal: A poor seal can cause the unit to run excessively, overshooting the target. Inspect and correct gasket issues.
• Monitor cycling: Observe whether the compressor or cooling module ever turns off. Continuous running suggests a control or sensor issue.
• Compare with thermometer: Place an accurate fridge thermometer inside and compare it to the display. If the display is much higher than the actual temperature, the sensor may be faulty.
• Sensor/PCB repair: If the sensor is misreading or the compressor relay is stuck, replace the cabinet sensor or main PCB as appropriate (see sensor error procedures). These repairs are of moderate difficulty and may be best handled by a technician.