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 means it’s not receiving the correct arming signal or there’s a safety issue. First, check your transmitter and receiver to ensure the throttle stick is at the lowest position—ESCs won’t arm if the throttle isn’t at zero. Next, verify that your ESC is properly calibrated: power it on with the throttle fully up until you hear a confirmation beep, then lower the throttle to zero to complete calibration. Also, inspect all wiring connections for loose or reversed cables, especially the signal wire between the ESC and flight controller or receiver. Some ESCs require a minimum voltage or temperature to arm, so ensure your battery is charged and the ESC isn’t overheating (keep it below 80°C). Finally, if your ESC has a programming card or software, check if any safety settings (like brake enabled or motor direction) could be preventing arming. Following these steps should stop the beeping and allow your ESC to arm safely.