Why is my ESC beeping and refusing to arm?

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

Answer: Continuous beeping from your ESC usually indicates a problem preventing it from arming safely. First, check the throttle stick on your transmitter—make sure it is at the lowest position. ESCs often beep if the throttle is not at zero. Next, verify that the ESC is correctly calibrated with your transmitter: power up the ESC while holding the throttle at maximum, wait for the beeps indicating calibration mode, then lower the throttle to minimum. Also, inspect all wiring connections for secure solder joints and no shorts. Some ESCs beep if the motor is disconnected or the signal wire is loose. Finally, ensure your battery voltage is within the ESC’s operating range; an undervoltage can cause beeping. If your ESC has a manual or LED codes, consult it for specific beep patterns. Following these steps should help your ESC arm properly and stop the beeping.