The pump motor doesn't turn, but it hums. A belt pulley by hand, the motor began normal rotation, for reasons.The motor has a capacitor. Is it a starting capacitor or a running capacitor?Sorry, everybody.The reason is found, there is a crack in the back shell of the motor.
Single-phase motor bar, the capacitor is broken, change the same
As you say, it didn't seem like this before. In this case, the problem of capacitance may be considered, but it may also be the problem of the cylinder and the problem of the piston type. Or if there is a fault at the top, but if you move with your hands, then the problem can be put aside, and you should consider whether it is caused by lack of oil. My suggestion is that there's something wrong with the piston, and the other oil can be changed. You try it first
The pump motor usually adopts the method of capacitor split phase starting. So you say the capacitor, start to do the boot capacitor, when running, do the running capacitor. Your motor may be out of this capacitor. Of course, it is not possible to exclude the possibility of the short circuit of the motor starting coil. Try changing a capacitor with the same size (mostly 35 micro methods).
