The Genie 38874R1.S Circuit Board Assembly is a genuine OEM control board designed for select Genie residential garage door openers. As the primary logic board inside the opener head, it manages motor operation, travel limits, Safe-T-Beam sensor monitoring, wall console commands, and wireless remote inputs to ensure dependable open/close performance and safety compliance. This direct-replacement PCB restores normal function in operators that exhibit symptoms such as intermittent response, failure to start, or error indications on the opener’s diagnostic LED, and it installs using the factory harness connections within compatible models.
For best results, disconnect power before servicing, note existing connections, and transfer all plugs and wiring one-to-one to the new board. After installation, reprogram remote controls and keypads as required, and re-set travel limits and force per Genie instructions; verify Safe-T-Beam alignment and perform a full safety reversal test in accordance with UL 325 guidelines. Compatibility is model-specific—confirm fitment by matching part number 38874R1.S to your opener’s serial label and the official Genie parts chart or a trusted Genie distributor catalog. This authentic Genie replacement control board is ideal for homeowners and service professionals seeking a reliable, plug-in repair solution for a non-functioning or inconsistent garage door opener.