Why is my ESC beeping and refusing to arm?

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

Answer: Continuous beeping from an ESC usually signals a problem preventing it from arming. First, check your throttle stick is at the lowest position; many ESCs won’t arm if the throttle isn’t fully down. Next, confirm your ESC is correctly calibrated to your transmitter’s throttle range—this often involves a specific calibration procedure outlined in your ESC manual. Also, inspect all connections for loose or incorrect wiring, especially the battery and motor leads. Some ESCs beep if the battery voltage is too low or if there’s a short circuit, so verify your battery is fully charged and the motor spins freely without obstruction. Lastly, ensure your ESC’s firmware and settings match your motor and battery specifications. If problems persist, try resetting the ESC to factory defaults or consult the manufacturer’s troubleshooting guide. Following these steps should help you identify why your ESC beeps and won’t arm.