Why does my ESC keep beeping and won’t arm?

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

Answer: Continuous beeping from your ESC usually indicates it’s not receiving the correct arming signal or there’s a safety lock. First, ensure your transmitter throttle stick is at the lowest position before powering on the ESC, as most ESCs require this to arm. Next, check the ESC calibration: disconnect the battery, turn on your transmitter with throttle maxed, then connect the battery to the ESC. Wait for the beeps signalling max throttle calibration, then lower the throttle to minimum and wait for confirmation beeps. Also, verify that your ESC and flight controller are configured correctly and that the signal wires are properly connected. Some ESCs have a built-in low-voltage cutoff or temperature warning—make sure your battery voltage and ESC temperature are within safe limits. Finally, consult your ESC’s manual for specific beep codes, as they vary by model. Following these steps should help you identify and fix the arming issue.