Why does my ESC keep beeping and won’t arm?

Question: Why does my ESC keep beeping and not arm?

Answer: Continuous beeping from your ESC usually indicates it is not receiving the correct arming signal or there is a safety issue. First, check your throttle stick is fully at the bottom (minimum throttle) before powering up, as ESCs require this to arm. Next, ensure your transmitter and receiver are correctly bound and that the throttle channel is calibrated. If your ESC has a calibration mode, follow the manufacturer's instructions to calibrate the throttle range. Also, verify your battery voltage is within the ESC’s acceptable range; low voltage can cause beeping. Inspect all wiring for loose connections or shorts. Finally, some ESCs beep to indicate temperature warnings or faults—ensure your ESC is not overheating or damaged. By following these steps—checking throttle position, calibrating, verifying power and connections—you can usually resolve the beeping and get your ESC to arm properly.