Causes of Abnormal Noise During Motor Operation

There are several reasons for abnormal sound during the operation of an electric motor, including:

1. The stator and rotor rub against each other;          

2. Rotor blade collision shell;

3. Wipe insulation paper on the rotor;            

4. The bearing is severely lacking in oil;

5. There are debris inside the electric motor;          

6. There is a buzzing sound during the two-phase operation of the electric motor.