Venta Airwasher (evaporative humidifier) runs but there is no noticeable increase in humidity

Safety: Unplug the Airwasher before removing the upper housing or disk stack.

• Check room conditions: Close doors and windows in the room you are trying to humidify. Ensure the room size is within the capacity of your Venta model.
• Verify settings: Confirm that the desired humidity is set higher than the current room humidity. If the display shows the setpoint already reached, the unit will reduce output.
• Clean the disk stack: Remove the water tank and lift out the evaporation disk stack. Rinse thoroughly under warm water. For heavy scale, soak in Venta cleaner or a 1:1 vinegar solution per the manual, then rinse well.
• Clean the water basin: Empty and clean the basin to remove sludge and mineral deposits that can coat the disks.
• Check fan speed: Turn the unit on and cycle through fan speeds. If the fan does not change speed or is very weak, inspect and clean the fan motor and impeller. Replace the fan motor if it cannot reach full speed.
• Sensor check: If the unit thinks the humidity is higher than it really is, the humidity sensor module may be out of calibration and require replacement.