Wine cooler displays E2 and may run continuously or not cool correctly.

Safety first: Disconnect power to the wine cooler before removing interior panels or touching wiring. Use cut‑resistant gloves when working near metal panels and coils.

Steps to diagnose and correct:

• 1. Power cycle: Unplug the unit for 5–10 minutes, then restore power. If E2 reappears, proceed.
• 2. Access the evaporator area: Remove interior shelves and the rear evaporator cover panel inside the cabinet (usually held by Phillips screws). Carefully pull the panel forward to expose the evaporator coil.
• 3. Locate the defrost/evaporator sensor: It is typically clipped to the evaporator tubing or embedded in foam near the coil. Verify it is firmly attached and not hanging loose.
• 4. Inspect wiring: Look for broken insulation, corrosion at connectors, or signs of ice damage. Reseat the connector at the sensor and at the main control board.
• 5. Test the sensor: With the unit unplugged, disconnect the sensor and measure resistance. Compare to the Viking NTC temperature/resistance chart. Replace the sensor if it reads open, shorted, or far out of spec.
• 6. Reattach or reposition sensor: If the sensor has slipped off the coil, reclip it firmly to the same location to ensure accurate evaporator temperature sensing.
• 7. If sensor and wiring are good: The main control board may not be reading the sensor correctly. Replacement of the board is recommended by a professional.

Note: After replacing the sensor, clear the error by disconnecting power for several minutes, then verify normal operation and absence of E2.