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 hasn't received the correct arming signal or there's a setup issue. First, ensure your transmitter and receiver are properly bound and that the throttle stick is at its minimum position. Next, confirm that the ESC calibration matches your transmitter's throttle range: most ESCs require a calibration process where you power on the ESC with the throttle at full, then pull it down to minimum to set throttle endpoints. Check that your battery voltage is sufficient and the connectors are secure, as low voltage can cause beeping. Also, inspect for any error codes in the ESC manual—some beeping patterns correspond to specific faults like motor connection issues or temperature warnings. Finally, verify that your flight controller or receiver is correctly configured to send the throttle signal to the ESC. Following these steps should help you identify why the ESC won't arm and resolve the beeping issue.