Figure 6
05 Troubleshooting
The following are some simple roadside assist tips for electrical problems:
No power (controller lights off). Check the battery is charging and charged, check the battery fuse,
check connections, check the key switch. If none of the above it may be your control unit or display
depending on the model.
No power (lights on). This means your battery is probably fine and it is likely to be a connector or
fuse. Check the return on your e-brakes, check connections to your motor, then connections to your
interface (display/throttle) and sensors.
Power cut-out. Check e-brake return, check battery contacts and if black check lock in tolerance,
check connections. Before seeking help try to notice exactly when the cut-out occurs, i.e. on a long hill,
on a short steep hill, how many miles from last charge, after a bump, immediately after stopping or
slowing. This could be an issue with the motor.
Battery not charging. Check the charging fuse, check the charger fuse, check the power supply. Turn
off other appliances on the same power board, don’t use long extension cables.
Battery cuts out, particularly under load. Check any fuses and connectors, check wiring between
battery and motor. This could be an issue with the battery.
Motor noise. Roll backwards to see if the same noise occurs, cycle without power to see if the same
noise is still there; check connections especially if you have removed a component recently. Check for
sources of friction behind the brake pads and around the wheel.
Motor resistance. Ensure motor wheel is mounted correctly, check brakes are disengaging and set up
correctly, check for sources of friction, disengage power and see if resistance persists, roll the bike
backwards with the power on – you may have a sticky/rusty brake or hub especially if you’ve driven
through flood water (not advised).
