How to test the hall sensors

In order to test the sensors you need to apply +5V (using power supply or battery) between the red and ground of the hall wires and check the voltage between each of the hall signal wires (white wires) to the red wire (with multimeter) - while you rotate the motor by hand the voltage should change between +5V to 0V, that's how you will know if the halls failed or not.

BTW you can use up to 30V for this testing. (we use the SS411 sensors in our motors).