Will not charge
Separate charger, outlet, charge port, wiring, battery, and protection-system problems.
FIX IT
Start with what the scooter does.
Do not buy a controller because somebody guessed “controller.” Follow the symptom, make one check, and narrow the fault.
START HERE
Choose the symptom you actually have.
START HERE
MORE SYMPTOMS
MORE SYMPTOMS
Powers on, will not move
Brake cutoff, throttle, wiring, controller output, motor Hall sensors (rotor-position sensors), phase wires (the three motor-power wires), and battery sag (voltage dropping under load).
Shuts off under load
Track voltage drop, weak connections, overheating, current limits, and tired battery packs.
POWERS ON, WILL NOT MOVE
Do these in order.
Do not skip ahead because a replacement part is already in your cart.
- Make sure the driven wheel can turn.Check a jammed brake, seized bearing, damaged tire, or mechanical bind before chasing electronics.
- Release every brake lever completely.A stuck or misadjusted brake-cutoff switch can let the display power up while blocking throttle.
- Inspect every connector you recently touched.Look for backed-out pins, half-seated plugs, corrosion, heat damage, and wires pulled tight at the stem or deck hinge.
- Test the throttle instead of guessing.Confirm its supply, ground, and changing signal with a meter. Wire color alone is not proof of function.
- Check battery voltage while asking for power.A pack can show normal voltage at rest and collapse when the controller demands current.
- Only then move to controller and motor tests.Phase output, Hall-sensor signals, controller lock/enable wires, display communication, and model-specific interlocks (conditions that must be satisfied before drive is allowed) come after the simple causes are cleared.
Repair rule: function before color, measurement before assumption, evidence before confidence.