Troubleshooting - Electric Drive System

Connect the Tester to the Motor

⚠️  Turn off the main power switch to the electric drive.

It won't be required to test the motor. The Tester's 9v battery will supply the necessary power to check the motor. Ensure the 9v battery is fresh or it could effect proper testing.

Like the controller, the motor has two cable assemblies. One cable assembly is the thicker gauge Phase Wires. The other smaller gauge cable is the Hall Sensor Wires.

In order to perform the test, the motor-to-controller cable assemblies will need to be disconnected.

 

Test the Motor

As indicated previously, the Tester performs two different functions. The right half of the tester is for testing the controller while the left half is for testing the motor. This second test will check to make sure the motor windings and hall sensors are properly functioning.


1.  Test the Motor Windings (Coils)

Locate the three alligator clips on the back of the tester labeled Motor Coil. Connect them to the three Phase Wires on the motor cable assembly.

⚠️  Turn ON the Tester power switch.

Rotate the rear wheel/hub in the opposite direction of normal forward rotation. The three indicating LED's on the top row of the tester should flash in sequence.

✔︎  If any of the LED's fail to flash, either the motor windings have a fault or you have a bad connection.

2.  Test the Motor Hall Sensors

Locate the modular connector on the back of tester labeled Motor Hall Signal Wire. Ensure the red and black power wires are correctly matched before connecting the modular connector to the motor cable assembly. 

⚠️  Turn ON the Tester power switch.

Rotate the rear wheel/hub in the opposite direction of normal forward rotation. The three indicating LED's on the second row of the tester should flash in sequence.

✔︎  If any of the LED's fail to flash, either the motor hall sensors have a fault or you have a bad connection.


  • Does the motor appear to be testing properly?
Yes - (Normal) Click Here
No - (Abnormal) Continue

If either of the motor tests indicate there is a fault within the windings or hall sensors, replace the motor hub. 

If the motor tests indicate the electrical portion of the motor appears to be working properly, but there is still some sort of mechanical issue, its possible the integral clutch or reduction gears may be damaged. These items can be replaced without replacing the entire motor.

Replacement motors and motor parts are available in our parts shop. Replacing the motor hub is a specialized procedure involving wheel disassembly. Please visit the wheel disassembly section for detailed instruction on how to do this properly.