De'Longhi dehumidifier runs continuously and never reaches the set humidity; room feels overly dry or unit never cycles off.

Safety first: Unplug the unit before accessing the sensor.

Step-by-step:

• 1. Verify humidity: Use a separate hygrometer to check actual room humidity. If it is much lower than the setpoint, the unit is over-dehumidifying.
• 2. Relocate unit: Move the dehumidifier away from corners and ensure the intake is not drawing in air from a particularly damp area only.
• 3. Clean humidity sensor area: Gently brush dust from the sensor near the intake grille.
• 4. Increase setpoint: Raise the humidity setpoint to a higher value (e.g., 55–60%). If the unit still does not cycle off, the sensor or control board may be faulty.
• 5. Replace humidity sensor: Install a new humidity sensor module if readings are inaccurate compared to an external meter.