How to repair octagonal central motor without assistance?

Check the motor Hall element, motor drive circuit and motor rotor.

1, check the Hall element of the motor. Use multimeter or Hall element tester to check whether the Hall element of the motor is normal. If the Hall element is found to be damaged or faulty, it needs to be replaced with a new Hall element.

2. Check the motor drive circuit. Check whether the motor drive circuit is normal with multimeter or circuit tester. If the drive circuit is damaged or fails, it needs to be replaced with a new drive circuit.

3. Check the motor rotor. Use multimeter or rotor detector to detect whether the motor rotor is damaged or faulty. If the motor rotor is found to be damaged, it needs to be replaced with a new one.