With the application and the change of the ambient temperature, EC speed DC fans with different speeds are sometimes needed to meet the heat dissipation requirements of the equipment. In the process of using the equipment, various mechanical faults caused by the EC DC cooling fan sometimes occur. Do you know how to deal with the common faults of EC DC cooling fans? Here are three big professionals from TaiWan SAN JU International Electrical Machinery CO.,LTD. to help you.

Solution for common faults of EC DC cooling fans:

First, an abnormal sound:

Cause: When the abnormal sound is turned, the "dada" collision sound is heard, sometimes it is not. The chassis is covered with cluttered data lines and power lines. Sometimes it is inevitable that the head will hit the fan of the DC cooling fan. As a result, an abnormal sound is produced when the fan rotates.

Solution: You can use rubber bands, adhesive tape, etc. to tie the scattered data cable power cable inside the chassis, avoiding passing over the DC cooling fan.

Second, the rotation is not good:

Cause: The DC cooling fan has a slower speed when starting up, and the noise is also relatively large. It can be restored to normal after a short period of time. Due to the low room temperature, the DC cooling fan is easy to lose the effect of the lubricating oil on the rotating bearing.

Solution: Add anti-freeze lubricant to the DC cooling fan, and pay attention to the temperature of the surrounding environment.

Three, location offset:

Cause: The EC DC cooling fan automatically moved to a fixed position. The fastener of the fixed radiator fails, and the fan is displaced due to resonance caused by the rotation of the fan.

Solution: Replace the DC fan with a new one.

Four, noisy noise:

In the use, suddenly a special noise is emitted, even more than the sound of the chassis power supply, after inspection. It turned out that due to the long-term "repair", the surface of the DC cooling fan and the gap of the radiator gathered too much dust. The fan's motor oil has dried up, so it will make a motor-like roar.

Solution: Separate the DC cooling fan from the heat sink. The radiator can be cleaned directly with tap water. It can be wiped with soft paper first, and the gap can be wiped with a small cotton swab. Open the plastic sticker on the back of the fan and drop it into the movement of 1 drop - 2 drops of ordinary sewing machine oil. You can also use the grease of the toy four-wheel drive, the amount should not be too much.

Founded in 1988, TaiWan SAN JU International Electrical Machinery CO.,LTD. has been focusing on the development, manufacture and sale of AC, DC and EC full range of centrifugal cooling fans for nearly 30 years. Serving many successful companies at home and abroad, and export agents all over the world. Welcome customers to inquire, Taiwan consultation phone: +886-2-25427722, Shenzhen hotline: 0755-2803-5670.