With the increasing equipment of the factory, more and more machinery and equipment are purchased. However, to extend the use of mechanical equipment, it needs to heat the heat. With the change of the application and the environment temperature, the DC cooling fan at different speeds is sometimes needed to meet the heat dissipation requirement of the equipment, and the DC cooling fan is through. Over DC voltage and electromagnetic induction, a kind of heat dissipation device that is converted from electric energy to machinery to drive the wind blade. In a simple way, it is constantly switched by the coil and IC, and the induction magnetic ring rotates from the wind blade.Therefore, it has good heat dissipation effect and is widely used. Do you know how to deal with the common faults of DC cooling fan? The following by Shenzhen Yingtian Mechanical and Electrical Equipment Co., Ltd. to support you.

　　Methods to deal with common faults of direct current cooling fan：
　　
　　First, the occurrence of abnormal sound：
　　
　　Reason: when abnormal sounds rotate, they hear "Da Da" clash, but sometimes they do not. In the chassis, there are a lot of messy data lines and power lines, and sometimes the wires come into contact with the DC fan blades. As a result, the fan turned abnormal when it turned.　　
　　Solution: You can use rubber bands, adhesive paper, etc. will be scattered in the chassis of the data line power line tied, avoid passing through the DC fan above.　　
　　Two, the rotation is not smooth：
　　
　　The reason is that the speed of the DC fan is slower when it starts, and the noise is bigger, and it will return to normal after a period of time. After replacing the same fan for a period of time, the above phenomenon still appears. The indoor temperature of the DC fan is low, which causes the lubricating oil on the rotating bearing to fail.　　
　　Solution: add the anti freezing lubricating oil to the DC cooling fan, and pay attention to the temperature of the environment.　　
　　Three, position offset：
　　
　　Cause: DC cooling fan automatically moved to a fixed position. The fastener of the fixed radiator is invalid, and the resonance phenomenon caused by the fan rotation causes the displacement of the fan.　　
　　Solution: replace the DC heat sink fan with new fastener.　　
　　Four. Noisy noise：
　　
　　A special noise is suddenly emitted during use, even larger than the sound emitted by the chassis power. Originally due to the "repair", the DC fan surface and radiator gap gathered too much dust. The motor lubricating oil of the fan has completely dried up, causing a motor roar.。
　　
　　The solution is to separate the DC radiator fan from the radiator and wash the radiator directly with tap water. You can wipe it with soft paper first. You can use small cotton swabs to wipe the gaps. Open the plastic sticker on the back of the fan and drop 1 drops of -2 drops into the machine with ordinary sewing oil. You can also use the grease of the toy four-wheel drive car. The amount of grease should not be excessive.