Now let me introduce several common fault types of shaded pole motors in detail:

1. Unable to start

- It may be a power supply problem. Check whether the power cord, fuse, switch, etc. are normal

- The coil winding is short-circuited or open-circuited, which needs to be measured and replaced

- The capacitor capacity is insufficient or damaged, and the capacitor needs to be replaced

2. Unstable operation

- The power supply voltage is unstable or low

- The bearing is worn or damaged, resulting in mechanical vibration

- The electromagnetic noise is too large, and a suppression capacitor may need to be installed

3. Abnormal speed

- The power supply voltage is too high or too low

- Excessive load or stall

- The coil winding has poor contact or is partially open

4. Overheating and overload

- Long-term overload operation

- The coil winding is short-circuited or grounded

- Severe bearing wear leads to increased mechanical friction

5. High mechanical noise

- Bearing wear or damage

- The gap between the rotor and the stator is too small

- Unbalanced installation or the base is not firmly fixed

6. Leakage tripping

- Coil winding insulation is aged or damp

- Rotor or stator parts are grounded

- Capacitor capacity is out of adjustment or damaged

For the above common faults, it is necessary to carry out inspection and repair according to the specific situation. Such as replacing parts or adjusting and correcting. You can seek help from professional maintenance personnel when necessary. I hope this information is helpful to you. If you have any questions, please feel free to communicate with me.