Display shows E2 and the wine cooler may overcool or not cool correctly; temperature reading is erratic.

Safety: Disconnect the appliance from mains power before accessing internal components.

Steps to address E2:

• Power cycle: Turn off power for 5–10 minutes and restore. If E2 reappears, proceed.
• Access the evaporator area: On many Neff wine coolers, the evaporator is behind an interior rear panel. Remove shelves and the decorative panel (usually held by screws or clips).
• Locate the evaporator NTC: It is typically clipped to the evaporator tubing or embedded in foam near the coil. Check that it is firmly attached and not hanging loose.
• Inspect wiring: Look for corrosion, ice damage, or broken insulation on the sensor leads. Ensure the connector at the main PCB is secure.
• Defrost if iced over: If the evaporator is heavily iced, allow the unit to defrost fully (doors open, towels in place) for several hours. Do not chip ice with sharp tools.
• Test and replace: With power off, test the sensor resistance. If readings are open, shorted, or far from expected values, replace with a Neff-compatible evaporator NTC sensor.
• Persistent E2: If a new sensor does not clear the error, the main control board may be defective and should be replaced by a professional.