Humidifier shuts off unexpectedly even though the room is still dry.

Safety first: Unplug the unit before moving or opening it.

Steps to address premature shutoff:

• Relocate unit: Move the humidifier away from corners and ensure the mist is not blowing directly onto the built-in sensor.
• Increase setpoint: Set the desired humidity slightly higher and observe if the unit runs longer.
• Compare humidity: Use a separate hygrometer in different parts of the room to see if the unit's reading is accurate.
• Sensor or control replacement: If the unit consistently shuts off while the room is still dry and readings are inaccurate, the internal humidistat or control board may need replacement.

Note: Some models cycle to prevent over-humidification; brief off periods can be normal.