There are many types of small fans. Nowadays, people prefer USB small fans, because they are more convenient to carry even if there is no electricity. You can take them out and use them this year. The damage has also made many people feel particularly helpless. The reason why the small USB Fan does not turn needs to be understood, and the purchasing skills of the Usb Fan should also be known. The reason for the small usb fan not turning?
1. The fan plug is loose or the wire is broken. When the fan stopped spinning, we responded that the plug was loose. At this time, you can try to re-insert the socket to confirm. Then check whether the wires of the electric fan are broken. If the wires are broken or frayed, it is likely that the copper wires in the wires are broken and the power cannot be supplied. 2. The electric fan motor lacks lubricating oil. The core component of the electric fan is the motor. Only the rotation of the motor shaft can make the electric fan rotate. After using for a period of time, the electric fan will be difficult to rotate due to the lack of lubricating oil on the rotating shaft, resulting in the electric fan not rotating. In the case of power failure, turn the fan blade by hand, if the rotation of the fan blade is relatively sluggish, it can be judged that the motor lacks lubricating oil. 3. The thermal fuse of the electric fan motor is open. If the temperature of the electric fan motor is too high and the short circuit will cause the thermal fuse of the motor to overheat and burn out, this is set by the electric fan for the protection of the motor. The thermal fuse is located on the coil of the motor, if the thermal fuse is broken, it means that the fuse is broken and the fan does not turn because of this. USB fan purchase tips? 1. When unpacking and inspecting the product, the certificate and manual must be attached. The nameplate of the electric fan should include the manufacturer's name, product model specification, rated power, rated voltage, power supply type and frequency and other indicators. Whether the outer packaging and inner packaging of the electric fan are damaged. 2. The appearance quality requires that the shape, line and tone are beautiful and generous. Electroplating parts require smooth, shiny, no yellowing, no rust spots, peeling and water marks. The paint film is required to be hard and smooth, without bubbles, scratches, peeling of paint film, hanging paint or mixing of different colors. 3. Whether the decorative parts are damaged; the front and rear grilles are tightly fitted without deformation, and whether the welding points of the grille wires are loose and desoldered. The Floor Fan can be raised and lowered flexibly. Electric fans with special functions should function well. 4. Check whether the fan head, speed control and timing switches match the panel markings. There are many kinds of switch devices, such as keyboard type and touch type, which require safety, good flexibility, and good contact when turning on and off the power supply. If it is a key switch, when a certain key is pressed, there should be no phenomenon that two keys are connected, and each key should be pressed and reset flexibly and freely. There are many reasons why the small USB fan does not turn. When such a situation occurs, people should first understand the reasons, and then go to repair, so that the effect of the repair can make people feel at ease and get a good guarantee. The USB fan purchase skills should be mastered. After mastering the small skills, the quality of the selection can be reassuring.
