Wine cooler will not cool properly; temperature rises above setpoint and display may flash E1.

Safety first: Unplug the wine cooler or switch off the circuit breaker before removing any panels. Do not work on live wiring.

This code usually indicates a problem with the cabinet temperature sensor (thermistor) used by Café wine coolers to monitor internal temperature.

• Step 1 – Power reset: Unplug the unit for 5 minutes, then plug it back in. If E1 returns after a few minutes of operation, continue with diagnosis.
• Step 2 – Inspect sensor location: Open the door and locate the small plastic sensor cover or probe usually mounted on the rear wall or side wall of the wine compartment. Check for physical damage, ice buildup, or wires pulled loose.
• Step 3 – Check wiring harness: Remove the interior shelves as needed. Carefully pull the sensor cover and inspect the two-wire harness. Look for cuts, pinched sections, or corroded connectors. Reseat the connector if accessible.
• Step 4 – Test thermistor (if you have a meter): With the unit unplugged, disconnect the sensor from the harness and measure resistance across the two leads. Compare to Café service specs (typically 5–50 kΩ depending on temperature). An open circuit or 0 Ω indicates a bad sensor.
• Step 5 – Replace sensor: If resistance is out of range or the sensor is physically damaged, replace the cabinet temperature sensor with a Café-compatible thermistor. Route the new sensor along the original path and secure it away from moving parts and sharp edges.
• Step 6 – Check main control board: If a known-good sensor still triggers E1, inspect the main control board (usually behind the lower rear panel). Look for burnt spots or loose connectors on the sensor input. Reseat connectors; if damage is visible, the board may need replacement.

If you are not comfortable testing electrical components, contact a qualified appliance technician.