Levoit Tower Fan for Bedroom, 28 ft/s Fans Blowing Cool Air, Quiet 28 dB | Standing Floor Fan for Room, 90° Oscillating, 5 Speeds 4 Modes & Temp Sensor, Bladeless, 12H Timer, Remoter, 36 inch, Black

1. Illustration of Each Mode Normal Mode: This is the default mode. Use it to set the tower fan as you like. Auto Mode: With a built-in sensor, the fan speeds change according to the ambient temperature. Turbo Mode: Used for rapid cooling and air circulation, it starts at the highest speed with oscillation. When the ambient temperature drops, the fan speed decreases accordingly. Then the fan speed changes according to the ambient temperature. Advanced Sleep Mode: The display and sound will turn off automatically in 5 seconds. a) Within the first hour, the fan does not oscillate. The starting fan speed is determined by the current fan speed when you select this mode. b) After one hour, the fan oscillates and decreases speeds to prevent cooling from constant wind. c) Then the fan speeds will change according to temperature, giving you a comfortable nighttime experience. 2. Troubleshooting If the fan suddenly starts oscillating, it is normal when the fan is in Advanced Sleep Mode. It will start oscillating automatically after one hour of operation, which is its default setting. If the air output has decreased after cleaning the wind wheel, make sure the screws are aligned with the flat surface of the motor shaft during installation, not with the arc surface, otherwise the air output will be reduced. If the fan suddenly stops, it could be a timer set accidentally before. Check it and try it a second time. If the top control panel is not very responsive, check whether your fan is in Advanced Sleep Mode or turn off the display manually. When the fan is off, the operation panel will enter a semi-sleep state to prevent an accidental touch