Why does my ESC keep beeping and fail to arm?

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

Answer: Continuous beeping from an ESC usually indicates an error or that it hasn’t detected the throttle in the correct position. To fix this, first ensure your transmitter throttle stick is at its lowest position before powering on the ESC. If it still beeps, check the ESC calibration: disconnect the battery, turn on the transmitter with the throttle maxed, then connect the battery to the ESC. Wait for the beeps signalling calibration, then immediately lower the throttle to zero. Also verify your ESC’s battery voltage matches its specifications, and that the battery is fully charged. Inspect wiring for any loose or reversed connections, especially the motor and signal wires. Finally, consult your ESC’s manual for specific beep codes, as some beeps may indicate temperature, low voltage, or other faults. Following these steps should help your ESC arm correctly and stop the beeping.