Wine cooler shows E2 on the display; unit may run continuously or shut down prematurely and not hold temperature.

Safety warning: Disconnect power before opening any panels. Sharp metal edges and moving fan blades can cause injury.

Steps to address E2:

• Power cycle: Unplug the cooler for 5–10 minutes, then reconnect. If E2 reappears, proceed with inspection.
• Access the evaporator compartment: Remove interior shelves and the rear interior panel (inside the cabinet) to expose the evaporator coil and fan. On some NewAir models, this panel is held by several screws.
• Locate the evaporator thermistor: It is usually clipped to the evaporator tubing or mounted near the evaporator fins, with two small wires leading back to the control board.
• Inspect for damage: Check if the sensor is encased in heavy ice, broken, or has its insulation worn off. Look for wires that have been cut or rubbed by the evaporator fan blade.
• Defrost if iced over: If the evaporator is heavily iced, leave the unit unplugged with the door open for several hours or use a hair dryer on low, keeping it away from plastic parts and wiring. Do not chip ice with sharp tools.
• Check connections: Follow the thermistor wires to the control board (usually at the rear or bottom). Ensure the connector is fully seated and not corroded.
• Test the thermistor: With the sensor disconnected and the unit unplugged, measure resistance with a multimeter and compare to NewAir specifications. An open or shorted reading indicates a bad sensor.
• Replace if needed: Install a new NewAir evaporator temperature sensor / thermistor, clipping it securely to the evaporator tubing in the same location as the original. Route wires away from the fan and sharp edges.
• Reassemble and test: Reinstall the interior panel and shelves, restore power, and monitor operation for several hours to confirm the E2 code is cleared and cooling is stable.

Note: If the sensor is good but E2 persists, the main control board may be faulty and should be evaluated by a professional.