Wine cooler display shows E1 and cabinet is not cooling or cooling erratically.

Safety first: Unplug the Vinotemp wine cooler before removing any panels. Do not work on live electrical parts.

Steps to check and replace the cabinet thermistor (E1):

• 1. Power reset: Unplug the unit for 5–10 minutes, then plug it back in. If E1 returns immediately, continue with diagnosis.
• 2. Locate the cabinet thermistor: On most Vinotemp wine coolers, the cabinet temperature sensor is a small probe or bullet-style sensor mounted inside the cabinet wall or behind the interior liner, usually near the middle or upper section. Access is often from the rear by removing the back cover.
• 3. Inspect wiring: Check the thermistor wires from the sensor to the main control board. Look for cuts, pinched sections, discoloration, or loose connectors. Reseat the connector firmly on the control board.
• 4. Test the thermistor: With the unit unplugged, disconnect the thermistor from the board and measure its resistance with a multimeter. Compare the reading to the Vinotemp service chart (typically around 5–20 kΩ at room temperature). A reading of 0 Ω (short) or infinite (open) indicates a bad sensor.
• 5. Replace the thermistor: If readings are out of range or intermittent when you gently wiggle the wires, replace the cabinet thermistor with a Vinotemp-compatible sensor. Route the new sensor along the original path and secure it away from moving parts and sharp edges.
• 6. Reassemble and test: Reinstall any panels, plug the unit back in, and allow 10–15 minutes. The E1 code should clear automatically if the new sensor is detected and functioning.

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