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 signals it hasn’t received the correct arming signal or there’s a setup issue. First, ensure your transmitter and receiver are properly bound and powered. Next, check that your throttle stick is at the lowest position before powering up the ESC; most ESCs require this to arm. If you have a programming card or software, verify that the throttle range is correctly calibrated. Also, confirm the ESC’s battery voltage is within the acceptable range and the motor connections are secure. Some ESCs beep to indicate errors like low voltage or motor issues, so consult your ESC’s manual for beep codes. If your ESC requires a specific arming procedure (like a stick sequence), follow that exactly. Finally, try recalibrating the ESC throttle range: disconnect the battery, hold the throttle high, connect the battery, wait for beeps, then lower the throttle and wait for confirmation beeps. This usually resolves arming problems and stops the beeping.