Wine cooler shows E2 and may run continuously or shut down cooling intermittently.

Safety warning: Disconnect power before removing toe-kick or control panels. Sharp metal edges may be present; wear cut-resistant gloves.

How to address E2:

• Confirm environment: Ensure the wine cooler is installed within the recommended ambient temperature range (typically 50–100°F / 10–38°C). Extreme ambient conditions can confuse sensor readings.
• Access ambient sensor: On many Thermador models, the ambient sensor is located near the front grille or control housing. Remove the toe-kick grille or upper trim to locate a small probe or plastic sensor housing.
• Inspect and reseat: Check for broken insulation, pinched wires, or loose connectors. Reseat the sensor plug at both ends.
• Measure resistance: With power off, disconnect the sensor and measure resistance. Compare to the Thermador NTC chart. Replace the sensor if readings are open, shorted, or out of range.
• Evaluate control board: If a new sensor does not clear E2, the main control board may not be interpreting the signal correctly. Inspect for burn marks or corrosion and replace the board if necessary.

Note: An ambient sensor fault can cause incorrect compressor run times, leading to poor temperature stability.