Humidifier produces very weak mist output even at maximum setting

Safety: Turn off and unplug the unit before cleaning.

Steps:

• Clean the transducer: Descale the ultrasonic membrane with BONECO descaler or vinegar solution as described in the no-mist entry.
• Clean mist outlet: Remove any mist nozzle or outlet cover and rinse under warm water. Use a soft brush to remove deposits from the mist channel.
• Check and clean evaporator mats: On BONECO hybrid models (e.g., H300, H400), remove the evaporator mat cassette and rinse thoroughly. Replace mats if they are stiff, discolored, or have an odor.
• Inspect fan and air path: Open the housing and gently vacuum dust from the fan blades and air channels. Ensure the fan spins freely by hand.
• Test again: Reassemble and run at maximum output. If mist remains weak, the fan motor or transducer driver may be failing and require replacement.