Dehumidifier shows incorrect humidity compared to a separate hygrometer

Safety: Unplug before accessing the sensor.

• Verify with multiple meters: Compare readings with at least one reliable external hygrometer.
• Clean sensor: Gently clean the humidity sensor vent area with a soft brush or compressed air.
• Check location: Ensure the sensor is in the intake airflow, not directly in the warm, dry exhaust stream.
• Sensor replacement: If readings remain significantly off, replace the humidity sensor assembly.
• Adjust setpoint: Compensate minor offsets by adjusting the target humidity a few percent up or down.