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 isn’t receiving the correct arming signal or there is a setup issue. First, ensure your transmitter and receiver are properly bound and that the throttle stick is at its lowest position. Many ESCs refuse to arm if the throttle is not fully down. Next, check the ESC’s startup beeping pattern in the manual; it often signals specific errors like low battery voltage or calibration issues. To calibrate, disconnect the battery, hold the throttle at maximum, reconnect the battery, wait for the confirmation beeps, then lower the throttle to minimum. Also inspect all wiring connections for loose or reversed cables. If your ESC has a programming card or software, verify settings such as throttle range and battery cut-off voltage. Lastly, confirm your battery is charged and functioning correctly. Following these steps should resolve most beeping and arming problems.