The following aspects can be used to evaluate whether the refrigerator shaded pole motor needs to be repaired or replaced:

1. Abnormal noise: If the refrigerator shaded pole motor produces director noise, it may be caused by bearing wear or other mechanical reasons. If the noise persists or becomes more obvious, the motor may need to be repaired or replaced.

2. Abnormal operation: If the refrigerator shaded pole motor cannot start, stop or the speed is unstable, it may be due to damage to the internal components of the motor or circuit problems. At this time, it is necessary to check and repair.

3. Overheating: If the surface of the refrigerator shaded pole motor is overheated, it may be caused by motor overload, poor ventilation or other faults. Heat may damage the motor and needs to be checked and repaired in time.

4. Decreased refrigeration effect: If the refrigerator shaded pole motor cannot provide sufficient driving force, resulting in a decrease in refrigeration effect and the inability to keep the food at the appropriate temperature, this may be one of the signs of motor failure.

5. Visible damage or wear: If the refrigerator shaded pole motor has damaged coils, broken insulation or severely worn bearings, it can be judged by visual inspection. If there is obvious physical damage or wear, the motor may need to be replaced.

If you find any of the above problems with the refrigerator motor, it is recommended that you stop using it immediately and consult a professional repairman or contact the refrigerator manufacturer's after-sales service department. They can perform a detailed inspection and repair of the motor and provide suggestions for repairing or replacing the motor. Remember that motor repair and replacement need to be performed by professionals, and avoid disassembly or repair by yourself to avoid causing more damage or safety risks.