Why Does My ESC Keep Beeping and Not 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 setup issue. First, check that your transmitter throttle is at the lowest position before powering up the ESC—many ESCs won’t arm if the throttle isn’t at zero. Next, ensure the ESC is correctly calibrated: power up the ESC with the throttle fully open, wait for the tones, then bring the throttle down to zero to complete calibration. Also, verify your ESC’s battery voltage is sufficient; low voltage can cause beeping and prevent arming. Inspect all wiring connections for secure solder joints and correct polarity. If your ESC has a programming card or software, confirm that the arming settings match your transmitter’s requirements. Finally, some ESCs beep to warn about temperature or motor issues, so check the motor for any mechanical binding or overheating signs. Following these steps should help resolve the beeping and get your ESC to arm properly.