Godox AD400Pro E1/E3 Main Drive Board or Capacitor Repair This prepaid repair service addresses covered main drive-board or capacitor-circuit failures in a Godox AD400Pro flash. Important: This service is for the original AD400Pro and its Flashpoint equivalent. Contact us before ordering for an AD400Pro II. This repair is appropriate for: An E1 error displayed on the LCD An E3 error displayed on the LCD The flash powers on normally but will not fire The flash tube has been confirmed to be working properly We will inspect the flash to determine which covered board or component has failed. If the problem requires a different repair, we will contact you before performing additional work. What the repair includes Diagnosis of the covered main-board or capacitor-circuit failure Replacement of the failed covered board or component Installation and complete functional testing A repair report when the work is complete A six-month warranty covering the repaired component Return shipping from MoLight to you What to send Send only the main AD400Pro flash unit. Do not send the battery or flash tube Do not send the reflector, case or other accessories Do not send additional items unless we specifically request them Pack the flash securely and use a shipping service that provides tracking. You are responsible for shipping the flash to MoLight. The shipping charge collected with your repair order covers return shipping to you. How the repair process works Add this repair service to your cart and complete payment. Print your order confirmation showing the six-digit order number. Place the order confirmation inside the package with your flash. Please include a note identifying the error code or no-fire condition, the troubleshooting you have performed and any other information we should know. Ship the flash to the MoLight Repair Center using a shipping service that provides tracking. We will send you an email confirming that your repair has been received. We will inspect, repair and test the flash. When the repair is complete, we will email your repair report and return the flash to you. Repair turnaround Turnaround begins when your flash arrives at MoLight. Please review the current Repair Queue Status on the main repairs page before ordering. Orders containing multiple flashes may require additional time. We will contact you if we discover a different problem or need additional information. Otherwise, you will hear from us again when the repair is complete. Repair shipping address MoLight Repair707 W Lexington ParkwayDeForest, WI 53532