Wine cooler runs but cannot reach set temperature; display shows E1 and temperature reading may flash.

Safety first: Unplug the wine cooler from the wall outlet before removing any panels. Do not work on the unit while it is energized.

Steps to check and address E1:

• Power reset: Unplug the cooler for 5 minutes, then plug it back in. If E1 returns, continue with diagnosis.
• Locate the cabinet thermistor: On most Kenmore wine coolers, the cabinet temperature sensor is a small probe or bullet-style sensor mounted on the interior liner (often behind a small plastic cover or inside an air channel) and connected to the main control board with two thin wires.
• Inspect wiring: Remove the interior shelves as needed. Look for a small cover or channel where the sensor sits. Check for pinched, cut, or chewed wires and loose connectors. Reseat the connector at both the sensor and the control board if accessible.
• Test the thermistor: With the unit unplugged, disconnect the thermistor from the harness. Use a multimeter set to resistance (ohms). At room temperature (around 77°F / 25°C), most Kenmore NTC thermistors will read roughly 5k–10k ohms. A reading of 0 ohms (short) or infinite (open) indicates a bad sensor.
• Replace if faulty: If readings are out of range or unstable, replace the cabinet temperature sensor (thermistor) with a compatible Kenmore part. Route the new sensor along the original path, avoiding sharp bends or contact with moving parts, and secure it with clips or tape as originally installed.
• Reassemble and test: Reinstall any covers and shelves, plug the unit back in, and set a mid-range temperature. Allow several hours to verify that the error code clears and the temperature is stable.

When to call a technician: If the thermistor tests good but E1 persists, the main control board may be misreading the sensor and should be diagnosed by a professional.