Display shows E9 and the unit may not maintain humidity or may show erratic humidity readings (if equipped).

Safety: Unplug the unit before accessing the sensor.

• Locate humidity sensor: On models with humidity control, the sensor is typically mounted on the interior liner or behind a small grille.
• Clean sensor area: If there have been wine spills or condensation, gently clean around the sensor with a soft cloth. Do not saturate the sensor.
• Check wiring: Inspect the harness and reseat the connector at the control board.
• Replace sensor: If E9 persists, replace the humidity sensor with the correct Wolf part.