๐ 1. Check All Connections
- Ensure all connectors (battery to controller, controller to motor, throttle, display, etc.) are fully plugged in and correctly oriented.
- Look for bent pins, loose terminals, or reversed polarity.
- DO NOT disconnect and reconnect the battery, should there be an internal short within the controller, this will lead to an unsafe event
๐ 2. Verify Battery Voltage
- Use a multimeter to check the battery output voltage.
- Make sure it matches your system (e.g., a 72V system should read around ~84V fully charged).
- Has the battery been connected to a charger? If not, the BMS (Battery Management System) may be asleep and needs to be connected to a charger to wake up and allow power output.
- If the voltage is below the controllerโs low-voltage cutoff, the system wonโt turn on.
๐ง 3. Confirm Controller Power-Up
- Does the controller make any noise, light up or show signs of activity?
- Is there a voltage displayed on the voltmeter when turned on?
๐ง 4. Check for Error Codes or Blinking LEDs
- TruMoto Controllers may display an error message on the HUD
- A Votol controller would have a blinking light pattern of two flash pattern
- Kelly Controllers will have a beeping sequence of two patterns
๐ 5. Swap Components (if available)
- If possible, swap in a known-working battery, controller, or throttle to isolate the issue.
- This is especially useful if you suspect one component is DOA.
๐ฅ 6. Check for Short Circuits or Heat
- If something gets hot quickly or sparks, stop immediately.
- Inspect for pinched wires, exposed leads, or wrong connections.
๐ 7. Contact Support
- If all else fails, take clear photos of your setup and wiring or capture a short video of your concern, and email them with a description of the issue including any information you discovered during your inspections and submit a ticket HERE.
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