E7 displayed; humidity control not functioning correctly on models with active humidification.

Safety first: Disconnect power before accessing internal humidification components.

Steps:

• 1. Check water supply: On models with a water tray or cartridge, ensure it is filled and correctly seated.
• 2. Inspect humidity sensor: Locate the sensor (often near the middle of the cabinet) and check for contamination or corrosion. Gently clean with a dry cloth.
• 3. Reset humidity settings: Restore factory settings for humidity and observe operation.
• 4. Replace sensor or module: If humidity readings are clearly wrong or E7 persists, have the humidity sensor or humidification module replaced with Liebherr parts.