After receiving the switch signal from the control system, the electric actuator of the actuator does not rotate and has a buzzing sound. The reason may be:
1) The planetary gear part of the reducer is jammed, damaged or deformed;
2) The helical gear transmission part of the reducer is deformed, excessively worn or damaged;
3) The turbine vortex rod or screw nut transmission part of the reducer is deformed, damaged, or jammed;
4) The overall mechanical part is not well coordinated and flexible, and needs to be adjusted and refueled.