What is the reason why the self priming pump does not rotate despite the sound of electric current?

Recently, some users will ask what is the reason why the self suction pump has a current sound but does not rotate. The sound of electric current in a self priming pump that does not rotate is caused by various reasons. For example, it could be caused by foreign objects inside the machine, or it could be a problem with the motor. The motor may not rotate due to current noise, and the motor bearings may rust and get stuck due to lack of oil.

Self priming pumps have a certain pressure control system, which usually automatically stops when the system pressure is sufficient. If insufficient, it will continue to work until the increased pressure reaches the preset pressure. It is normal for the self priming pump to not make a sound. The frequency of its sound is a problem with the pressure control system of the self priming pump. You can contact the staff for maintenance and inspection. When the self priming pump is plugged in, only the current hums but does not work. To solve this problem, we need to carefully study and identify the problem, so that we can prescribe the right medicine, otherwise we won't be able to find the problem. Unable to handle and resolve properly.

The possible causes of the malfunction are as follows:
(1) If the motor makes a buzzing sound, it will not rotate, and the motor blades can also rotate. If there is, it needs to be replaced with a new one.
(2) The motor bearings are stuck due to lack of oil and rust or the pump is stuck due to rust. In this case, it cannot be used anymore and needs to be immediately powered off for maintenance.
(3) It is very likely that it is blocked, and this possibility is very high. The solution is to block the self suction pump, only by unblocking can the problem be solved.
(4) There should be a problem with the motor of the self priming pump. The solution is to promptly send the motor of the self priming pump to the maintenance department for cleaning. In addition to the above situations, there are other reasons such as insufficient pressure, cavitation of the self suction pump, and damage to the self suction pump.