Comfee Ultrasonic Transducer or Fan Noise

Humidifier makes high-pitched whining or buzzing noise during operation.

This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.

If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.

Possible Causes

Worn ultrasonic transducer, Fan motor bearings wearing out, Mineral buildup causing cavitation noise, Loose fan blade

Safety: Unplug before inspection.

Clean transducer: Descale the ultrasonic transducer with vinegar to reduce noise from mineral buildup.
Check fan: Inspect the small internal fan for dust and ensure it spins freely. Clean and lubricate if appropriate.
Replace noisy parts: If noise persists, replace the ultrasonic transducer module or fan motor as needed.

Medium 3/5

Ultrasonic Transducer / Small DC Fan Motor

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