Humidifier is very noisy, with rattling or buzzing sounds during operation.

Safety: Unplug the unit before opening the housing.

• Check placement: Ensure the humidifier is on a stable, level surface and not touching walls or objects that can resonate.
• Clean fan: Remove the cover and clean dust from the fan blades and surrounding area.
• Tighten screws: Check and tighten screws securing the fan, motor bracket, and housing panels.
• Inspect fan motor: Spin the fan by hand. If it wobbles or feels rough, replace the fan motor assembly.
• Reassemble and test: Reassemble and test noise levels. If noise persists, consider replacing the fan assembly.