Why does my ESC keep beeping and fail to arm?

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

Answer: Continuous beeping from your ESC usually indicates it’s in a warning or error state. First, check the throttle position: ensure your transmitter throttle stick is at the minimum position before powering on the ESC. Many ESCs beep to confirm throttle calibration; if the throttle isn’t at zero, they won’t arm. Next, calibrate the ESC throttle range by following your ESC’s manual—this typically involves powering on the ESC with the throttle at max, then moving it to min after beeps. Also, verify your battery voltage is within the ESC’s acceptable range; low voltage can cause beeping and prevent arming. Inspect all connections for secure solder joints and correct wiring order (motor phases and signal wires). Lastly, confirm your transmitter and receiver are bound correctly and the throttle channel is configured properly. Following these steps usually resolves the beeping and arming issue.