Why does my ESC keep beeping and refuse to 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 an issue with the throttle calibration. First, ensure your transmitter and receiver are properly bound and powered on. Next, calibrate your ESC by turning on your transmitter with the throttle at full, then power up the ESC until you hear the confirmation beeps, then lower the throttle to zero. This sets the throttle range. Also, check the throttle stick is at the lowest position when powering up the ESC—if it’s too high, the ESC won’t arm. Inspect all connections for secure solder joints or plugs, and make sure the battery voltage is within the ESC’s operating range. If your ESC has a programming card or app, verify its settings to ensure compatibility with your motor and battery. Following these steps should resolve the beeping and allow the ESC to arm properly.