The appliance makes noise.
The appliance may be placed on an uneven surface. Place the appliance on a firm, flat surface (this may reduce noise).
The appliance fails to start
If the room temperature is too low or too high the appliance may not work, it is recommended to use the appliance between 8 and 35°C.
If the filter is dirty, the appliance may not work as well. In this case a complete cleaning is necessary. We recommend cleaning or changing the filter and cleaning the air inlets and outlets.