Wine cooler display shows E1 and cabinet is not cooling or only slightly cool.

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

• Power reset: Unplug the cooler for 5–10 minutes, then plug it back in to see if E1 clears. If it returns, continue.
• Locate the cabinet thermistor: Inside most Avanti wine coolers, the cabinet temperature sensor is a small probe or plastic-covered bulb mounted on the rear or side wall, often routed through a grommet to the back of the unit.
• Inspect the sensor and wiring: Check that the sensor has not been pulled loose, cut, or pinched by shelves or bottles. Follow the wire to the back of the cabinet and look for damage or corrosion at connectors.
• Check connections at the control board: Remove the rear or top control panel (depending on model) to access the main control board. Verify the thermistor plug is fully seated and not corroded or burnt.
• Basic resistance check (for users with a multimeter): With the unit unplugged, disconnect the thermistor from the board and measure resistance across the two leads. At room temperature (around 77°F / 25°C), most Avanti NTC thermistors will read between 5k–20k ohms. A reading of 0 ohms (short) or infinite (open) indicates a bad sensor.
• Replace if faulty: If the sensor is open/shorted or physically damaged, replace it with an OEM Avanti cabinet thermistor compatible with your model. Route the new sensor along the original path and secure it away from moving parts and sharp edges.
• Control board check: If a known-good thermistor is installed and E1 persists, the temperature input circuit on the main control board may be defective and the board will need replacement. This is typically a level-4/5 repair; consider a professional if you are not comfortable with electronics.