2.5 L compact top-fill ultrasonic cool-mist humidifier with a rotary mist control, refill indicator, automatic low-water stop, and replaceable water filter sponge.
Choose the observed symptom, light, code, app state, or output problem.
Start the Classic 160 no-mist test by turning the rotary control higher. If output remains weak, the manual moves through tank water, excess water in the base, the bottom air inlet, nozzle, level placement, water temperature, cleaning residue, and the water filter assembly before escalation.
For a Classic 160 leak, unplug and dry the unit first so you can distinguish a fresh leak from spilled refill water or condensation. The manual then points to the silicone sealing ring at the outlet valve, high room humidity, water around the base, movement of a full unit, level placement, and the tank itself.
When the Classic 160 refill indicator remains on even though the tank contains water, first reseat the tank, then inspect the water filter assembly. The manual keeps this as an external water-path diagnosis and does not instruct the owner to open the base or manipulate the sensor.