I have a single phase ac fan motor (from a regular household stand fan) which operates on 240V 50Hz power source. It has a start capacitor.
The problem I am facing is the motor is not spinning or jammed. If I spin the motor by hand, the motor spin freely (not yet turned on), meaning that it is not mechanically jammed (bearings etc), but rather possibly electrically. When I let the motor spins fast by hand, then I switched on the power, the motor immediately stopped. It looks like the magnetic field is causing the rotor to be attracted to stator and get locked, preventing rotation. This is not suppose to happen. The magnetic field is supposed to be rotating. I have removed the capacitor and try to start by hand with power switched on, but still jammed.
What caused this phenomenon to occur? How to solve it?