Reasons and solutions for the motor not rotating
1. The fuse is burned out. This is a small case, just replace the fuse for a small fee.
2. The power switch is broken. Replace the power switch. This is a bit more troublesome and requires tools.
3. The Hall turn is broken. Diagnosis method: Use a multimeter to measure the output voltage of the green wire at the output end of the handlebar. If there is a voltage output of 1-4.2, the handlebar is normal. If there is no voltage output, the handlebar burns out and needs to be replaced.
4. The controller is broken. Detection method: Use a multimeter to measure the red connection at the output of the controller (connected to the plug of the handlebar) with a multimeter in the DC voltage file. If there is a voltage output of about 5 volts, the controller is normal. If there is no voltage output, the controller is burned out and needs to be replaced. Device.
5. The thread ends are loose. Please re-check each plug of the motor to see if there is any bad contact. Or the battery box is not in place when it is put into the frame, and the contacts are not in good contact.
6. The motor is burned out. This is the situation that everyone is most afraid of encountering. It is very expensive to replace the motor. Detection method: disconnect the connection between the motor and the controller, connect the rest of the wires, slowly rotate the motor, measure the Hall wire with a multimeter to see if there is a voltage change in the signal, if there is no change in one phase, it is the motor Hall The components are burned, causing phase loss, and the motor needs to be replaced.