How to choose an electric fan

The accompanying documents of each electric fan include instruction manual, product certificate, circuit diagram and packing list. When purchasing, the quantity and quality of parts should be checked according to the packing list. In addition, the following points should be noted.

Check the cage and fan blades.

See if there is obvious deformation between the net cover and the fan blades: on the assembled fan net cover, point a pen at the highest point of a fan blade, slowly move the fan blade, and the corresponding points of other fan blades should be very close to the pen tip, then rotate the fan blade, and pay attention to whether the rotation is light and flexible and can stop at any position.

Check control mechanism

See if the control mechanism is flexible: the control mechanism includes speed control switch, timing knob, rocking switch, lighting switch, etc. These control mechanisms should be flexible in operation and reliable in contact. For speed regulating gear, two gears are not allowed to be connected at the same time or one gear cannot be pressed down. Press the stop key, and all speed keys should be reset normally.