During the operation of the high-speed and high-pressure fan, there may be some problems in the control due to the high speed. Many users have had such problems, but the operation speed of the high-pressure fan is sometimes fast and sometimes slow, which will have a negative impact on the work. So why is there a problem? Next, we will analyze this problem.
In fact, the reason for this problem is that there is a problem with the engine, resulting in the fan running too fast or too slow, affecting the normal operation.
The first aspect may be that there are some bad phenomena between the motor rotor and the switch, such as bad toner or carbon brush, which will lead to this situation. Then we can identify whether the thyristor is abnormal if the resistance is normal. If it is normal, we can check the connection of the PCB of the high-voltage fan, which may be the loosening of the positive and negative poles.
The second reason is that there are some abnormal phenomena in the thyristor, such as collapse, short circuit, open circuit, failure to trigger, poor internal contact and so on, which may lead to unstable, fast and slow operation speed of high-pressure fan.
The third reason is that there are some problems with the adjustable resistance, because in the assembly structure, there is an adjustable resistance on the control panel, and the use frequency is relatively high. If it is used for a long time, it is easy to have poor contact for a long time. Therefore, the speed of the centrifugal valve is unstable.
The above are the reasons for the unstable speed of some high-pressure fans we sorted out. I hope it will be helpful to you
