Beurer humidifier makes loud buzzing or rattling noises during operation.

Safety: Unplug the unit before opening the housing.

Steps:

• Check placement: Place the humidifier on a solid, level surface. Avoid hollow furniture that can amplify vibration.
• Inspect external parts: Ensure the water tank and covers are properly seated and not vibrating.
• Access the fan: Remove the housing to expose the fan. Look for dust, hair, or foreign objects on the blades.
• Clean the fan: Use a soft brush and vacuum to remove debris. Hold the fan blades while cleaning to avoid spinning them with the vacuum.
• Tighten screws: Check and tighten any loose fan mounting screws or brackets.
• Check bearings: Spin the fan by hand. If it feels rough or wobbly, the motor bearings may be worn and the fan motor should be replaced.